[ dih-fish-uhn-see ]
/ dɪˈfɪʃ ən si /

noun, plural de·fi·cien·cies.

the state of being deficient; lack; incompleteness; insufficiency.
the amount lacked; a deficit.

Origin of deficiency

1625–35; < Late Latin dēficientia, Latin dēficient- (stem of dēficiēns). See deficient, -ency


non·de·fi·cien·cy, noun, plural non·de·fi·cien·cies.pre·de·fi·cien·cy, noun, plural pre·de·fi·cien·cies. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for deficiencies

British Dictionary definitions for deficiencies

/ (dɪˈfɪʃənsɪ) /

noun plural -cies

the state or quality of being deficient
a lack or insufficiency; shortage
another word for deficit
biology the absence of a gene or a region of a chromosome normally present
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

Medicine definitions for deficiencies

[ dĭ-fĭshən-sē ]


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.