Du"pli*cate (?), a. [L. duplicatus, p. p. of duplicare to double, fr. duplex double, twofold. See Duplex.] Double; twofold.
Duplicate proportion or ratio Math., the proportion or ratio of squares. Thus, in geometrical proportion, the first term to the third is said to be in a duplicate ratio of the first to the second, or as its square is to the square of the second. Thus, in 2, 4, 8, 16, the ratio of 2 to 8 is a duplicate of that of 2 to 4, or as the square of 2 is to the square of 4.
© Webster 1913.
Du"pli*cate, n.
1. That which exactly resembles or corresponds to something else; another, correspondent to the first; hence, a copy; a transcript; a counterpart.
I send a duplicate both of it and my last dispatch.
Sir W. Temple.
2. Law An original instrument repeated; a document which is the same as another in all essential particulars, and differing from a mere copy in having all the validity of an original.
Burrill.
© Webster 1913.
Du"pli*cate (?), v. t. [imp. & p. p. Duplicated (?); p. pr. & vb. n. Duplicating.]
1. To double; to fold; to render double.
2. To make a duplicate of (something); to make a copy or transcript of.
Glanvill.
3. Biol. To divide into two by natural growth or spontaneous action; as, infusoria duplicate themselves.
© Webster 1913. | 
