noun, plural de·fi·cien·cies.
the state of being deficient; lack; incompleteness; insufficiency.
the amount lacked; a deficit.
Origin of deficiency
1625–35;Related formsnon·de·fi·cien·cy, noun, plural non·de·fi·cien·cies.pre·de·fi·cien·cy, noun, plural pre·de·fi·cien·cies.
< Late Latin dēficientia, Latin dēficient-
(stem of dēficiēns
). See deficient
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for deficiencyflaw
Examples from the Web for deficiency
Contemporary Examples of deficiency
Historical Examples of deficiency
It is the deficiency, and not the excess of this quality, that is to be feared.
Wherever her heart was interested, there never seemed a deficiency of mind.
"We must do our best to supply the deficiency," said Morton, as he entered.
Besides, it supplies a deficiency which would have occurred had it been left out.
The deficiency is something over two hundred million florins.
British Dictionary definitions for deficiency
noun plural -cies
the state or quality of being deficient
a lack or insufficiency; shortage
biology the absence of a gene or a region of a chromosome normally present
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for deficiency
1630s, from deficience (mid-15c.) + -cy; or from Late Latin deficientia, from deficientem (see deficient).
Online Etymology Dictionary, © 2010 Douglas Harper
A lack or shortage of something essential to health; an insufficiency.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.