[ ri-doos, -dyoos ]
/ rɪˈdus, -ˈdyus /

verb (used with object), re·duced, re·duc·ing.

verb (used without object), re·duced, re·duc·ing.

Origin of reduce

1325–75; Middle English reducen to lead back < Latin redūcere to lead back, bring back, equivalent to re- re- + dūcere to lead
Related formsan·ti·re·duc·ing, adjective, nounnon·re·duc·ing, adjectiveo·ver·re·duce, verb, o·ver·re·duced, o·ver·re·duc·ing. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for reducing

British Dictionary definitions for reducing


/ (rɪˈdjuːs) /

verb (mainly tr)

Derived Formsreducible, adjectivereducibility, nounreducibly, adverb

Word Origin for reduce

C14: from Latin redūcere to bring back, from re- + dūcere to lead
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 reducing



late 14c., "bring back," from Old French reducer (14c.), from Latin reducere "lead back, bring back," figuratively "restore, replace," from re- "back" (see re-) + ducere "bring, lead" (see duke (n.)). Meaning "bring to an inferior condition" is 1570s; that of "bring to a lower rank" is 1640s (military reduce to ranks is from 1802); that of "subdue by force of arms" is 1610s. Sense of "to lower, diminish, lessen" is from 1787. Related: Reduced; reducing.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for reducing


[ rĭ-dōōs ]


To bring down, as in extent, amount, or degree; diminish.
To lose weight, as by dieting.
To restore a fractured or displaced body part to a normal condition or position.
To decrease the valence of an atom by adding electrons.
To remove oxygen from a compound.
To add hydrogen to a compound.
Related formsre•duci•ble adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.