qua·dru·ple /kwɑˈdrupəl, ˈdrʌ; ˈkwɑdrə-/
 (a.)四倍的,四重的,四部組成的四倍數(vt.)使成四倍(vi.)成為四倍


 quadruple
 四倍; 四元的; 四元組


 quadruple
 四元 四倍


 Quad·ru·ple a.  Fourfold; as, to make quadruple restitution; a quadruple alliance.
 Quadruple time Mus., that in which each measure is divided into four equal parts.


 Quad·ru·ple, n.  four times the sum or number; a fourfold amount; as, to receive to quadruple of the amount in damages.


 Quad·ru·ple, v. t. [imp. & p. p. Quadrupled p. pr. & vb. n. Quadrupling ]  To multiply by four; to increase fourfold; to double; to double twice.


 Quad·ru·ple, v. i. To be multiplied by four; to increase fourfold; to become four times as much.

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 quadruple
      adj 1: having four units or components; "quadruple rhythm has four
             beats per measure"; "quadruplex wire" [syn: quadruplicate,
              quadruplex, fourfold]
      2: four times as great or many; "a fourfold increase in the
         dosage" [syn: fourfold]
      n : a quantity that is four times as great as another
      v : increase fourfold; "His stock earning quadrupled"