deficiency

noun
de·​fi·​cien·​cy | \ di-ˈfi-shən-sē How to pronounce deficiency (audio) \
plural deficiencies

Definition of deficiency

1 : the quality or state of being defective or of lacking some necessary quality or element : the quality or state of being deficient : inadequacy suffers from a deficiency of critical thinking
2 : an amount that is lacking or inadequate : shortage staffing deficiencies : such as
a : a shortage of substances necessary to health a vitamin C deficiency hormone deficiencies
b genetics : deletion sense 2b(1)

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Examples of deficiency in a Sentence

The disease may be caused by nutritional deficiencies. The book's major deficiency is its poor plot. a deficiency of vitamin C There are several deficiencies in his plan. The accident was caused by deficiencies in the engine.
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Recent Examples on the Web

Council members, city staff and the two residents at the meeting took a tour of the site Wednesday night, with Building Maintenance Superintendent Rich Hoke pointing out some of the plaza’s deficiencies. Mike Danahey, Elgin Courier-News, "Elgin ponders what to do with aging, underused civic center plaza," 7 June 2018 None of these deficiencies were enough to forestall the Navy's order, though. Eric Tegler, Popular Mechanics, "Why the F/A-18 Is Such a Badass Plane," 29 Dec. 2016 These tests uncovered lots of low vitamin D levels — but there’s a scientific debate about how many of them are true deficiencies. Julia Belluz, Vox, "Millions of Americans take vitamin D. Most should just stop.," 9 Oct. 2018 The biggest glaring result was the deficiency in teacher pay. Zeke Maccormack, San Antonio Express-News, "Higher cost of living in Kendall County presents compensation challenges for government entities," 17 May 2018 Also discovered were deficiencies in other areas that might contribute to dementia, such as high levels of fasting insulin. Linda Marsa, Discover Magazine, "A New Treatment for Alzheimer's? It Starts With Lifestyle," 16 Nov. 2018 Specifically, the affidavits from counsel show deficiencies in notice and transition assistance. BostonGlobe.com, "Text: Federal judge’s ruling temporarily extends housing program for Hurricane Maria referees," 1 July 2018 The company vacated its Davie plant in June 2017 after inspection reports by the U.S. Food and Drug Administration in August 2016 and May 2017 identified numerous quality control deficiencies in its manufacturing processes. Ron Hurtibise, Sun-Sentinel.com, "More lawsuits filed against South Florida drug maker accused of selling contaminated medicines," 29 June 2018 Restraint-rule violated; $500 fine A review of DHS records showed a number of deficiencies at these facilities in the last three years. Mary Jo Pitzl, azcentral, "What's going on in there? Questions arise about migrant kids' welfare," 27 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deficiency.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of deficiency

1603, in the meaning defined at sense 1

History and Etymology for deficiency

defici(ent) entry 1 + -ency

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Statistics for deficiency

Last Updated

11 Apr 2019

Look-up Popularity

Time Traveler for deficiency

The first known use of deficiency was in 1603

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More Definitions for deficiency

deficiency

noun

English Language Learners Definition of deficiency

: a lack of something that is needed : the state of not having enough of something necessary
: a problem in the way something is made or formed

deficiency

noun
de·​fi·​cien·​cy | \ di-ˈfi-shən-sē How to pronounce deficiency (audio) \
plural deficiencies

Kids Definition of deficiency

: the condition of being without something necessary and especially something required for health a vitamin deficiency

deficiency

noun
de·​fi·​cien·​cy | \ di-ˈfish-ən-sē How to pronounce deficiency (audio) \
plural deficiencies

Medical Definition of deficiency

1 : a shortage of substances (as vitamins) necessary to health
2 : deletion

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deficiency

noun
de·​fi·​cien·​cy | \ di-ˈfi-shən-sē How to pronounce deficiency (audio) \
plural deficiencies

Legal Definition of deficiency

: an amount that is lacking or inadequate: as
a : the difference between the amount of tax owed and the amount of tax paid
b : the difference between the amount owed under a security agreement and the amount the creditor is able to recover upon default of the debtor by selling the collateral

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Comments on deficiency

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