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2 definitions found
 for Wood screw
From The Collaborative International Dictionary of English v.0.48 :

  Screw \Screw\ (skr[udd]), n. [OE. scrue, OF. escroue, escroe,
     female screw, F. ['e]crou, L. scrobis a ditch, trench, in
     LL., the hole made by swine in rooting; cf. D. schroef a
     screw, G. schraube, Icel. skr[=u]fa.]
     1. A cylinder, or a cylindrical perforation, having a
        continuous rib, called the thread, winding round it
        spirally at a constant inclination, so as to leave a
        continuous spiral groove between one turn and the next, --
        used chiefly for producing, when revolved, motion or
        pressure in the direction of its axis, by the sliding of
        the threads of the cylinder in the grooves between the
        threads of the perforation adapted to it, the former being
        distinguished as the external, or male screw, or, more
        usually the screw; the latter as the internal, or female
        screw, or, more usually, the nut.
        [1913 Webster]
     Note: The screw, as a mechanical power, is a modification of
           the inclined plane, and may be regarded as a
           right-angled triangle wrapped round a cylinder, the
           hypotenuse of the marking the spiral thread of the
           screw, its base equaling the circumference of the
           cylinder, and its height the pitch of the thread.
           [1913 Webster]
     2. Specifically, a kind of nail with a spiral thread and a
        head with a nick to receive the end of the screw-driver.
        Screws are much used to hold together pieces of wood or to
        fasten something; -- called also wood screws, and screw
        nails. See also Screw bolt, below.
        [1913 Webster]
     3. Anything shaped or acting like a screw; esp., a form of
        wheel for propelling steam vessels. It is placed at the
        stern, and furnished with blades having helicoidal
        surfaces to act against the water in the manner of a
        screw. See Screw propeller, below.
        [1913 Webster]
     4. A steam vesel propelled by a screw instead of wheels; a
        screw steamer; a propeller.
        [1913 Webster]
     5. An extortioner; a sharp bargainer; a skinflint; a niggard.
        [1913 Webster]
     6. An instructor who examines with great or unnecessary
        severity; also, a searching or strict examination of a
        student by an instructor. [Cant, American Colleges]
        [1913 Webster]
     7. A small packet of tobacco. [Slang] --Mayhew.
        [1913 Webster]
     8. An unsound or worn-out horse, useful as a hack, and
        commonly of good appearance. --Ld. Lytton.
        [1913 Webster]
     9. (Math.) A straight line in space with which a definite
        linear magnitude termed the pitch is associated (cf. 5th
        Pitch, 10
        (b) ). It is used to express the displacement of a rigid
            body, which may always be made to consist of a
            rotation about an axis combined with a translation
            parallel to that axis.
            [1913 Webster]
     10. (Zool.) An amphipod crustacean; as, the skeleton screw
         ({Caprella). See Sand screw, under Sand.
         [1913 Webster]
     Archimedes screw, Compound screw, Foot screw, etc. See
        under Archimedes, Compound, Foot, etc.
     A screw loose, something out of order, so that work is not
        done smoothly; as, there is a screw loose somewhere. --H.
     Endless screw, or perpetual screw, a screw used to give
        motion to a toothed wheel by the action of its threads
        between the teeth of the wheel; -- called also a worm.
     Lag screw. See under Lag.
     Micrometer screw, a screw with fine threads, used for the
        measurement of very small spaces.
     Right and left screw, a screw having threads upon the
        opposite ends which wind in opposite directions.
     Screw alley. See Shaft alley, under Shaft.
     Screw bean. (Bot.)
         (a) The curious spirally coiled pod of a leguminous tree
             ({Prosopis pubescens) growing from Texas to
             California. It is used for fodder, and ground into
             meal by the Indians.
         (b) The tree itself. Its heavy hard wood is used for
             fuel, for fencing, and for railroad ties.
     Screw bolt, a bolt having a screw thread on its shank, in
        distinction from a key bolt. See 1st Bolt, 3.
     Screw box, a device, resembling a die, for cutting the
        thread on a wooden screw.
     Screw dock. See under Dock.
     Screw engine, a marine engine for driving a screw
     Screw gear. See Spiral gear, under Spiral.
     Screw jack. Same as Jackscrew.
     Screw key, a wrench for turning a screw or nut; a spanner
     Screw machine.
         (a) One of a series of machines employed in the
             manufacture of wood screws.
         (b) A machine tool resembling a lathe, having a number of
             cutting tools that can be caused to act on the work
             successively, for making screws and other turned
             pieces from metal rods.
     Screw pine (Bot.), any plant of the endogenous genus
        Pandanus, of which there are about fifty species,
        natives of tropical lands from Africa to Polynesia; --
        named from the spiral arrangement of the pineapple-like
     Screw plate, a device for cutting threads on small screws,
        consisting of a thin steel plate having a series of
        perforations with internal screws forming dies.
     Screw press, a press in which pressure is exerted by means
        of a screw.
     Screw propeller, a screw or spiral bladed wheel, used in
        the propulsion of steam vessels; also, a steam vessel
        propelled by a screw.
     Screw shell (Zool.), a long, slender, spiral gastropod
        shell, especially of the genus Turritella and allied
        genera. See Turritella.
     Screw steamer, a steamship propelled by a screw.
     Screw thread, the spiral rib which forms a screw.
     Screw stone (Paleon.), the fossil stem of an encrinite.
     Screw tree (Bot.), any plant of the genus Helicteres,
        consisting of about thirty species of tropical shrubs,
        with simple leaves and spirally twisted, five-celled
        capsules; -- also called twisted-horn, and twisty.
     Screw valve, a stop valve which is opened or closed by a
     Screw worm (Zool.), the larva of an American fly
        ({Compsomyia macellaria), allied to the blowflies, which
        sometimes deposits its eggs in the nostrils, or about
        wounds, in man and other animals, with fatal results.
     Screw wrench.
         (a) A wrench for turning a screw.
         (b) A wrench with an adjustable jaw that is moved by a
     To put the screws on or To put the screw on, to use
        pressure upon, as for the purpose of extortion; to coerce.
     To put under the screw or To put under the screws, to
        subject to pressure; to force.
     Wood screw, a metal screw with a sharp thread of coarse
        pitch, adapted to holding fast in wood. See Illust. of
        Wood screw, under Wood.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Wood \Wood\, n. [OE. wode, wude, AS. wudu, wiodu; akin to OHG.
     witu, Icel. vi?r, Dan. & Sw. ved wood, and probably to Ir. &
     Gael. fiodh, W. gwydd trees, shrubs.]
     [1913 Webster]
     1. A large and thick collection of trees; a forest or grove;
        -- frequently used in the plural.
        [1913 Webster]
              Light thickens, and the crow
              Makes wing to the rooky wood.         --Shak.
        [1913 Webster]
     2. The substance of trees and the like; the hard fibrous
        substance which composes the body of a tree and its
        branches, and which is covered by the bark; timber. "To
        worship their own work in wood and stone for gods."
        [1913 Webster]
     3. (Bot.) The fibrous material which makes up the greater
        part of the stems and branches of trees and shrubby
        plants, and is found to a less extent in herbaceous stems.
        It consists of elongated tubular or needle-shaped cells of
        various kinds, usually interwoven with the shinning bands
        called silver grain.
        [1913 Webster]
     Note: Wood consists chiefly of the carbohydrates cellulose
           and lignin, which are isomeric with starch.
           [1913 Webster]
     4. Trees cut or sawed for the fire or other uses.
        [1913 Webster]
     Wood acid, Wood vinegar (Chem.), a complex acid liquid
        obtained in the dry distillation of wood, and containing
        large quantities of acetic acid; hence, specifically,
        acetic acid. Formerly called pyroligneous acid.
     Wood+anemone+(Bot.),+a+delicate+flower+({Anemone+nemorosa">Wood anemone (Bot.), a delicate flower ({Anemone nemorosa)
        of early spring; -- also called windflower. See Illust.
        of Anemone.
     Wood+ant+(Zool.),+a+large+ant+({Formica+rufa">Wood ant (Zool.), a large ant ({Formica rufa) which lives
        in woods and forests, and constructs large nests.
     Wood apple (Bot.). See Elephant apple, under Elephant.
     Wood baboon (Zool.), the drill.
     Wood betony. (Bot.)
        (a) Same as Betony.
        (b) The common American lousewort ({Pedicularis
            Canadensis), a low perennial herb with yellowish or
            purplish flowers.
     Wood borer. (Zool.)
        (a) The larva of any one of numerous species of boring
            beetles, esp. elaters, longicorn beetles,
            buprestidans, and certain weevils. See Apple borer,
            under Apple, and Pine weevil, under Pine.
        (b) The larva of any one of various species of
            lepidopterous insects, especially of the clearwing
            moths, as the peach-tree borer (see under Peach),
            and of the goat moths.
        (c) The larva of various species of hymenopterous of the
            tribe Urocerata. See Tremex.
        (d) Any one of several bivalve shells which bore in wood,
            as the teredos, and species of Xylophaga.
        (e) Any one of several species of small Crustacea, as the
            Limnoria, and the boring amphipod ({Chelura
     Wood carpet, a kind of floor covering made of thin pieces
        of wood secured to a flexible backing, as of cloth.
     Wood cell (Bot.), a slender cylindrical or prismatic cell
        usually tapering to a point at both ends. It is the
        principal constituent of woody fiber.
     Wood choir, the choir, or chorus, of birds in the woods.
        [Poetic] --Coleridge.
     Wood coal, charcoal; also, lignite, or brown coal.
     Wood cricket (Zool.), a small European cricket ({Nemobius
     Wood culver (Zool.), the wood pigeon.
     Wood cut, an engraving on wood; also, a print from such an
     Wood dove (Zool.), the stockdove.
     Wood drink, a decoction or infusion of medicinal woods.
     Wood duck (Zool.)
        (a) A very beautiful American duck ({Aix sponsa). The
            male has a large crest, and its plumage is varied with
            green, purple, black, white, and red. It builds its
            nest in trees, whence the name. Called also bridal
            duck, summer duck, and wood widgeon.
        (b) The hooded merganser.
        (c) The Australian maned goose ({Chlamydochen jubata).
     Wood echo, an echo from the wood.
     Wood engraver.
        (a) An engraver on wood.
        (b) (Zool.) Any of several species of small beetles whose
            larvae bore beneath the bark of trees, and excavate
            furrows in the wood often more or less resembling
            coarse engravings; especially, Xyleborus
     Wood engraving.
        (a) The act or art engraving on wood; xylography.
        (b) An engraving on wood; a wood cut; also, a print from
            such an engraving.
     Wood fern. (Bot.) See Shield fern, under Shield.
     Wood fiber.
        (a) (Bot.) Fibrovascular tissue.
        (b) Wood comminuted, and reduced to a powdery or dusty
     Wood fretter (Zool.), any one of numerous species of
        beetles whose larvae bore in the wood, or beneath the
        bark, of trees.
     Wood frog (Zool.), a common North American frog ({Rana
        sylvatica) which lives chiefly in the woods, except
        during the breeding season. It is drab or yellowish brown,
        with a black stripe on each side of the head.
     Wood germander. (Bot.) See under Germander.
     Wood god, a fabled sylvan deity.
     Wood grass. (Bot.) See under Grass.
     Wood grouse. (Zool.)
        (a) The capercailzie.
        (b) The spruce partridge. See under Spruce.
     Wood guest (Zool.), the ringdove. [Prov. Eng.]
     Wood hen. (Zool.)
        (a) Any one of several species of Old World short-winged
            rails of the genus Ocydromus, including the weka and
            allied species.
        (b) The American woodcock.
     Wood hoopoe (Zool.), any one of several species of Old
        World arboreal birds belonging to Irrisor and allied
        genera. They are closely allied to the common hoopoe, but
        have a curved beak, and a longer tail.
     Wood ibis (Zool.), any one of several species of large,
        long-legged, wading birds belonging to the genus
        Tantalus. The head and neck are naked or scantily
        covered with feathers. The American wood ibis ({Tantalus
        loculator) is common in Florida.
     Wood lark (Zool.), a small European lark ({Alauda
        arborea), which, like, the skylark, utters its notes
        while on the wing. So called from its habit of perching on
     Wood laurel (Bot.), a European evergreen shrub ({Daphne
     Wood leopard (Zool.), a European spotted moth ({Zeuzera
        aesculi) allied to the goat moth. Its large fleshy larva
        bores in the wood of the apple, pear, and other fruit
     Wood lily (Bot.), the lily of the valley.
     Wood lock (Naut.), a piece of wood close fitted and
        sheathed with copper, in the throating or score of the
        pintle, to keep the rudder from rising.
     Wood louse (Zool.)
        (a) Any one of numerous species of terrestrial isopod
            Crustacea belonging to Oniscus, Armadillo, and
            related genera. See Sow bug, under Sow, and Pill
            bug, under Pill.
        (b) Any one of several species of small, wingless,
            pseudoneuropterous insects of the family Psocidae,
            which live in the crevices of walls and among old
            books and papers. Some of the species are called also
            book lice, and deathticks, or deathwatches.
     Wood mite (Zool.), any one of numerous small mites of the
        family Oribatidae. They are found chiefly in woods, on
        tree trunks and stones.
     Wood mote. (Eng. Law)
        (a) Formerly, the forest court.
        (b) The court of attachment.
     Wood nettle. (Bot.) See under Nettle.
     Wood nightshade (Bot.), woody nightshade.
     Wood nut (Bot.), the filbert.
     Wood nymph. (a) A nymph inhabiting the woods; a fabled
        goddess of the woods; a dryad. "The wood nymphs, decked
        with daisies trim." --Milton.
        (b) (Zool.) Any one of several species of handsomely
            colored moths belonging to the genus Eudryas. The
            larvae are bright-colored, and some of the species, as
            Eudryas grata, and Eudryas unio, feed on the
            leaves of the grapevine.
        (c) (Zool.) Any one of several species of handsomely
            colored South American humming birds belonging to the
            genus Thalurania. The males are bright blue, or
            green and blue.
     Wood offering, wood burnt on the altar.
        [1913 Webster]
              We cast the lots . . . for the wood offering. --Neh.
                                                    x. 34.
        [1913 Webster]
     Wood oil (Bot.), a resinous oil obtained from several East
        Indian trees of the genus Dipterocarpus, having
        properties similar to those of copaiba, and sometimes
        substituted for it. It is also used for mixing paint. See
     Wood opal (Min.), a striped variety of coarse opal, having
        some resemblance to wood.
     Wood paper, paper made of wood pulp. See Wood pulp,
     Wood pewee (Zool.), a North American tyrant flycatcher
        ({Contopus virens). It closely resembles the pewee, but
        is smaller.
     Wood pie (Zool.), any black and white woodpecker,
        especially the European great spotted woodpecker.
     Wood pigeon. (Zool.)
        (a) Any one of numerous species of Old World pigeons
            belonging to Palumbus and allied genera of the
            family Columbidae.
        (b) The ringdove.
     Wood puceron (Zool.), a plant louse.
     Wood pulp (Technol.), vegetable fiber obtained from the
        poplar and other white woods, and so softened by digestion
        with a hot solution of alkali that it can be formed into
        sheet paper, etc. It is now produced on an immense scale.
     Wood quail (Zool.), any one of several species of East
        Indian crested quails belonging to Rollulus and allied
        genera, as the red-crested wood quail ({Rollulus
        roulroul), the male of which is bright green, with a long
        crest of red hairlike feathers.
     Wood rabbit (Zool.), the cottontail.
     Wood rat (Zool.), any one of several species of American
        wild rats of the genus Neotoma found in the Southern
        United States; -- called also bush rat. The Florida wood
        rat ({Neotoma Floridana) is the best-known species.
     Wood+reed+grass+(Bot.),+a+tall+grass+({Cinna+arundinacea">Wood reed grass (Bot.), a tall grass ({Cinna arundinacea)
        growing in moist woods.
     Wood reeve, the steward or overseer of a wood. [Eng.]
     Wood rush (Bot.), any plant of the genus Luzula,
        differing from the true rushes of the genus Juncus
        chiefly in having very few seeds in each capsule.
     Wood sage (Bot.), a name given to several labiate plants of
        the genus Teucrium. See Germander.
     Wood screw, a metal screw formed with a sharp thread, and
        usually with a slotted head, for insertion in wood.
     Wood sheldrake (Zool.), the hooded merganser.
     Wood shock (Zool.), the fisher. See Fisher, 2.
     Wood shrike (Zool.), any one of numerous species of Old
        World singing birds belonging to Grallina,
        Collyricincla, Prionops, and allied genera, common in
        India and Australia. They are allied to the true shrikes,
        but feed upon both insects and berries.
     Wood snipe. (Zool.)
        (a) The American woodcock.
        (b) An Asiatic snipe ({Gallinago nemoricola).
     Wood soot, soot from burnt wood.
     Wood sore. (Zool.) See Cuckoo spit, under Cuckoo.
     Wood sorrel (Bot.), a plant of the genus Oxalis ({Oxalis
        Acetosella), having an acid taste. See Illust. (a) of
     Wood spirit. (Chem.) See Methyl alcohol, under Methyl.
     Wood stamp, a carved or engraved block or stamp of wood,
        for impressing figures or colors on fabrics.
     Wood star (Zool.), any one of several species of small
        South American humming birds belonging to the genus
        Calothorax. The male has a brilliant gorget of blue,
        purple, and other colors.
     Wood sucker (Zool.), the yaffle.
     Wood swallow (Zool.), any one of numerous species of Old
        World passerine birds belonging to the genus Artamus and
        allied genera of the family Artamidae. They are common
        in the East Indies, Asia, and Australia. In form and
        habits they resemble swallows, but in structure they
        resemble shrikes. They are usually black above and white
     Wood tapper (Zool.), any woodpecker.
     Wood tar. See under Tar.
     Wood thrush, (Zool.)
        (a) An American thrush ({Turdus mustelinus) noted for the
            sweetness of its song. See under Thrush.
        (b) The missel thrush.
     Wood tick. See in Vocabulary.
     Wood tin. (Min.). See Cassiterite.
     Wood titmouse (Zool.), the goldcgest.
     Wood tortoise (Zool.), the sculptured tortoise. See under
     Wood vine (Bot.), the white bryony.
     Wood vinegar. See Wood acid, above.
     Wood warbler. (Zool.)
        (a) Any one of numerous species of American warblers of
            the genus Dendroica. See Warbler.
        (b) A European warbler ({Phylloscopus sibilatrix); --
            called also green wren, wood wren, and yellow
     Wood worm (Zool.), a larva that bores in wood; a wood
     Wood wren. (Zool.)
        (a) The wood warbler.
        (b) The willow warbler.
            [1913 Webster]

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