[ noun, adjective kwo-droo-pli-kit; verb kwo-droo-pli-keyt ]
/ noun, adjective kwɒˈdru plɪ kɪt; verb kwɒˈdru plɪˌkeɪt /


one of four copies or identical items, especially copies of typewritten material.


consisting of four identical parts.
pertaining to a fourth item or copy of something.

verb (used with object), quad·ru·pli·cat·ed, quad·ru·pli·cat·ing.

to produce or copy in quadruplicate.
to make four times as great.

Nearby words

  1. quadruple,
  2. quadruple run,
  3. quadruple time,
  4. quadruplet,
  5. quadruplex,
  6. quadruplication,
  7. quadruplicity,
  8. quadrupole,
  9. quads,
  10. quaere


    in quadruplicate, in four identical copies.

Origin of quadruplicate

1650–60; < Latin quadruplicātus (past participle of quadruplicāre), equivalent to quadruplic- (stem of quadruplex quadruplex) + -ātus -ate1

Related formsquad·ru·pli·ca·tion, quad·ru·pli·ca·ture [kwo-droo-pli-kuh-cher] /kwɒˈdru plɪ kə tʃər/, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for quadruplicate

British Dictionary definitions for quadruplicate


adjective (kwɒˈdruːplɪkɪt, -ˌkeɪt)

fourfold or quadruple

verb (kwɒˈdruːplɪˌkeɪt)

to multiply or be multiplied by four

noun (kwɒˈdruːplɪkɪt, -ˌkeɪt)

a group or set of four things
Derived Formsquadruplication, noun

Word Origin for quadruplicate

C17: from Latin quadruplicāre to increase fourfold

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for quadruplicate
Online Etymology Dictionary, © 2010 Douglas Harper