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verb (used with object), mul·ti·plied, mul·ti·ply·ing.
  1. to make many or manifold; increase the number, quantity, etc., of.
  2. Arithmetic. to find the product of by multiplication.
  3. to breed (animals).
  4. to propagate (plants).
  5. to increase by procreation.
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verb (used without object), mul·ti·plied, mul·ti·ply·ing.
  1. to grow in number, quantity, etc.; increase.
  2. Arithmetic. to perform the process of multiplication.
  3. to increase in number by procreation or natural generation.
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Origin of multiply1

1225–75; Middle English multiplien < Old French multiplier < Latin multiplicāre. See multi-, ply2
Related formsself-mul·ti·plied, adjectiveself-mul·ti·ply·ing, adjectiveun·mul·ti·plied, adjectiveun·mul·ti·ply·ing, adjective


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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for multiplied


verb -plies, -plying or -plied
  1. to increase or cause to increase in number, quantity, or degree
  2. (tr) to combine (two numbers or quantities) by multiplication
  3. (intr) to increase in number by reproduction
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Derived Formsmultipliable or multiplicable, adjective

Word Origin

C13: from Old French multiplier, from Latin multiplicāre to multiply, from multus much, many + plicāre to fold
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 multiplied



mid-12c., multeplier, "to cause to become many," from Old French multiplier, mouteplier (12c.) "increase, get bigger; flourish; breed; extend, enrich," from Latin multiplicare "to increase," from multiplex (genitive multiplicis) "having many folds, many times as great in number," from comb. form of multus (see multi-) + -plex "-fold," from PIE *plek- "to plait" (see ply (v.1.)). Mathematical sense is attested from late 14c. Related: Multiplied; multiplying.

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Online Etymology Dictionary, © 2010 Douglas Harper

multiplied in Medicine


  1. To increase the amount, number, or degree of.
  2. To breed or propagate.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

multiplied in Science


  1. To perform multiplication on a pair of quantities.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.