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2 definitions found
 for Surveyor''s level
From The Collaborative International Dictionary of English v.0.48 :

  Level \Lev"el\ (l[e^]v"[e^]l), n. [OE. level, livel, OF. livel,
     F. niveau, fr. L. libella level, water level, a plumb level,
     dim. of libra pound, measure for liquids, balance, water
     poise, level. Cf. Librate, Libella.]
     1. A line or surface to which, at every point, a vertical or
        plumb line is perpendicular; a line or surface which is
        everywhere parallel to the surface of still water; -- this
        is the true level, and is a curve or surface in which all
        points are equally distant from the center of the earth,
        or rather would be so if the earth were an exact sphere.
        [1913 Webster]
  
     2. A horizontal line or plane; that is, a straight line or a
        plane which is tangent to a true level at a given point
        and hence parallel to the horizon at that point; -- this
        is the apparent level at the given point.
        [1913 Webster]
  
     3. An approximately horizontal line or surface at a certain
        degree of altitude, or distance from the center of the
        earth; as, to climb from the level of the coast to the
        level of the plateau and then descend to the level of the
        valley or of the sea.
        [1913 Webster]
  
              After draining of the level in Northamptonshire.
                                                    --Sir M. Hale.
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              Shot from the deadly level of a gun.  --Shak.
        [1913 Webster]
  
     4. Hence, figuratively, a certain position, rank, standard,
        degree, quality, character, etc., conceived of as in one
        of several planes of different elevation.
        [1913 Webster]
  
              Providence, for the most part, sets us on a level.
                                                    --Addison.
        [1913 Webster]
  
              Somebody there of his own level.      --Swift.
        [1913 Webster]
  
              Be the fair level of thy actions laid
              As temperance wills and prudence may persuade.
                                                    --Prior.
        [1913 Webster]
  
     5. A uniform or average height; a normal plane or altitude; a
        condition conformable to natural law or which will secure
        a level surface; as, moving fluids seek a level.
        [1913 Webster]
  
              When merit shall find its level.      --F. W.
                                                    Robertson.
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     6. (Mech. & Surv.)
        (a) An instrument by which to find a horizontal line, or
            adjust something with reference to a horizontal line.
        (b) A measurement of the difference of altitude of two
            points, by means of a level; as, to take a level.
            [1913 Webster]
  
     7. A horizontal passage, drift, or adit, in a mine.
        [1913 Webster]
  
     Air level, a spirit level. See Spirit level (below).
  
     Box level, a spirit level in which a glass-covered box is
        used instead of a tube.
  
     Carpenter's level, Mason's level, either the plumb level
        or a straight bar of wood, in which is imbedded a small
        spirit level.
  
     Level of the sea, the imaginary level from which heights
        and depths are calculated, taken at a mean distance
        between high and low water.
  
     Line of levels, a connected series of measurements, by
        means of a level, along a given line, as of a railroad, to
        ascertain the profile of the ground.
  
     Plumb level, one in which a horizontal bar is placed in
        true position by means of a plumb line, to which it is at
        right angles.
  
     Spirit level, one in which the adjustment to the horizon is
        shown by the position of a bubble in alcohol or ether
        contained in a nearly horizontal glass tube, or a circular
        box with a glass cover.
  
     Surveyor's level, a telescope, with a spirit level
        attached, and with suitable screws, etc., for accurate
        adjustment, the whole mounted on a tripod, for use in
        leveling; -- called also leveling instrument.
  
     Water level, an instrument to show the level by means of
        the surface of water in a trough, or in upright tubes
        connected by a pipe.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Surveyor \Sur*vey"or\, n.
     1. One placed to superintend others; an overseer; an
        inspector.
        [1913 Webster]
  
              Were 't not madness then,
              To make the fox surveyor of the fold? --Shak.
        [1913 Webster]
  
     2. One who views and examines for the purpose of ascertaining
        the condition, quantity, or quality of anything; as, a
        surveyor of highways, ordnance, etc.
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     3. One who surveys or measures land; one who practices the
        art of surveying.
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     4. (Customs)
        (a) An officer who ascertains the contents of casks, and
            the quantity of liquors subject to duty; a gauger.
        (b) In the United States, an officer whose duties include
            the various measures to be taken for ascertaining the
            quantity, condition, and value of merchandise brought
            into a port. --Abbot.
            [1913 Webster]
  
     Surveyor general.
        (a) A principal surveyor; as, the surveyor general of the
            king's manors, or of woods and parks. [Eng.]
        (b) An officer having charge of the survey of the public
            lands of a land district. [U.S.] --Davies & Peck
            (Math. Dict.).
  
     Surveyor's compass. See Circumferentor.
  
     Surveyor's level. See under Level.
        [1913 Webster]

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