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2 definitions found
 for Compound radical
From The Collaborative International Dictionary of English v.0.48 :

  Compound \Com"pound\, a. [OE. compouned, p. p. of compounen. See
     Compound, v. t.]
     Composed of two or more elements, ingredients, parts;
     produced by the union of several ingredients, parts, or
     things; composite; as, a compound word.
     [1913 Webster]
           Compound substances are made up of two or more simple
           substances.                              --I. Watts.
     [1913 Webster]
     Compound addition, subtraction, multiplication,
     division (Arith.), the addition, subtraction, etc., of
        compound numbers.
     Compound crystal (Crystallog.), a twin crystal, or one
        seeming to be made up of two or more crystals combined
        according to regular laws of composition.
     Compound engine (Mech.), a form of steam engine in which
        the steam that has been used in a high-pressure cylinder
        is made to do further service in a larger low-pressure
        cylinder, sometimes in several larger cylinders,
     Compound ether. (Chem.) See under Ether.
     Compound flower (Bot.), a flower head resembling a single
        flower, but really composed of several florets inclosed in
        a common calyxlike involucre, as the sunflower or
     Compound fraction. (Math.) See Fraction.
     Compound fracture. See Fracture.
     Compound householder, a householder who compounds or
        arranges with his landlord that his rates shall be
        included in his rents. [Eng.]
     Compound interest. See Interest.
     Compound larceny. (Law) See Larceny.
     Compound leaf (Bot.), a leaf having two or more separate
        blades or leaflets on a common leafstalk.
     Compound microscope. See Microscope.
     Compound motion. See Motion.
     Compound number (Math.), one constructed according to a
        varying scale of denomination; as, 3 cwt., 1 qr., 5 lb.;
        -- called also denominate number.
     Compound pier (Arch.), a clustered column.
     Compound quantity (Alg.), a quantity composed of two or
        more simple quantities or terms, connected by the sign +
        (plus) or - (minus). Thus, a + b - c, and bb - b, are
        compound quantities.
     Compound radical. (Chem.) See Radical.
     Compound ratio (Math.), the product of two or more ratios;
        thus ab:cd is a ratio compounded of the simple ratios a:c
        and b:d.
     Compound rest (Mech.), the tool carriage of an engine
     Compound screw (Mech.), a screw having on the same axis two
        or more screws with different pitch (a differential
        screw), or running in different directions (a right and
        left screw).
     Compound time (Mus.), that in which two or more simple
        measures are combined in one; as, 6-8 time is the joining
        of two measures of 3-8 time.
     Compound word, a word composed of two or more words;
        specifically, two or more words joined together by a
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Radical \Rad"i*cal\ (r[a^]d"[i^]*kal), n.
     1. (Philol.)
        (a) A primitive word; a radix, root, or simple, underived,
            uncompounded word; an etymon.
        (b) A primitive letter; a letter that belongs to the
            [1913 Webster]
                  The words we at present make use of, and
                  understand only by common agreement, assume a
                  new air and life in the understanding, when you
                  trace them to their radicals, where you find
                  every word strongly stamped with nature; full of
                  energy, meaning, character, painting, and
                  poetry.                           --Cleland.
            [1913 Webster]
     2. (Politics) One who advocates radical changes in government
        or social institutions, especially such changes as are
        intended to level class inequalities; -- opposed to
        [1913 Webster]
              In politics they [the Independents] were, to use the
              phrase of their own time, "Root-and-Branch men," or,
              to use the kindred phrase of our own, Radicals.
        [1913 Webster]
     3. (Chem.)
        (a) A characteristic, essential, and fundamental
            constituent of any compound; hence, sometimes, an
            [1913 Webster]
                  As a general rule, the metallic atoms are basic
                  radicals, while the nonmetallic atoms are acid
                  radicals.                         --J. P. Cooke.
            [1913 Webster]
        (b) Specifically, a group of two or more atoms, not
            completely saturated, which are so linked that their
            union implies certain properties, and are conveniently
            regarded as playing the part of a single atom; a
            residue; -- called also a compound radical. Cf.
            [1913 Webster]
     4. (Alg.) A radical quantity. See under Radical, a.
        [1913 Webster]
              An indicated root of a perfect power of the degree
              indicated is not a radical but a rational quantity
              under a radical form.                 --Davies &
                                                    Peck (Math.
        [1913 Webster]
     5. (Anat.) A radical vessel. See under Radical, a.
        [1913 Webster]

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