DUPLICATE • DICTIONARY ONE.COM • Definition of Duplicate

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/dˈupləkət/ /dˈupləkˌeɪt/ Listen

noun

Duplicate n.

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."

(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.

verb

Duplicate v. t. (past & past part. duplicated; pres. part. duplicating)

To double; to fold; to render double.

To make a duplicate of (something); to make a copy or transcript of.

(Biol.) To divide into two by natural growth or spontaneous action; as, infusoria duplicate themselves.

adjective

duplicate adj. Double; twofold.

Duplicate proportion or Duplicate 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.

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Etymology of 'Duplicate'

Collaborative International Dictionary of English 0.48

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"Duplicate" Quotes from Famous Books

... brought Joe a letter from Mr. Gregory, in which the news contained in the telegram was confirmed. It was also stated that Joe would receive formal notice of his draft from the St. Louis team, and his contract, which was to be signed in duplicate. ...

— Baseball Joe in the Big League - or, A Young Pitcher's Hardest Struggles • Lester Chadwick

... voyage the ship was two and a half years from England before any opportunity of sending this copy occurred. The ship was the whole of this time in new and savage lands. When Batavia was reached the duplicate of Cook's Journal was sent home, and six months later, when the ship arrived in England, the full Journal of the voyage was deposited at ...

— Captain Cook's Journal During the First Voyage Round the World • James Cook

... stairway; there was a kitchen back of the hall, and a square parlour with a green-tiled mantel to the left; a square dining room back of the parlour, with a window at the back and another at the side. The side window gave upon the neighbouring house, a duplicate of this house, forty feet away, and the back window commanded an oblong backyard in which clotheslines and bean poles and a dog house, and a small vegetable garden protected by collapsing chicken wire, and various pails and buckets appertaining to the ...

— Harriet and the Piper - (Norris Volume XI) • Kathleen Norris

... with a smile that was a fine duplicate of Tom's own. "We know just where to arrange for the kind of accommodations that we want. Mr. Reade," turning to Tom and Harry, "will you allow me to introduce ourselves. We are aching to shake hands with you, for we've heard ...

— The Young Engineers in Arizona - Laying Tracks on the Man-killer Quicksand • H. Irving Hancock

... PHEASANT, teachers who prefer may have duplicate pictures of each bird each month, on a separate sheet, to use ...

— Birds Illustrated by Color Photography [June, 1897] - A Monthly Serial designed to Promote Knowledge of Bird-Life • Various

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