Dictionary

deficiency

noun de·fi·cien·cy \di-ˈfi-shən-sē\

: 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

plural de·fi·cien·cies

Full Definition of DEFICIENCY

1
:  the quality or state of being deficient :  inadequacy
2
:  an amount that is lacking or inadequate :  shortage: as
a :  a shortage of substances necessary to health
b :  deletion 2b(1)
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Examples of DEFICIENCY

  1. The disease may be caused by nutritional deficiencies.
  2. The book's major deficiency is its poor plot.
  3. a deficiency of vitamin C
  4. There are several deficiencies in his plan.
  5. The accident was caused by deficiencies in the engine.

First Known Use of DEFICIENCY

1603
DEFICIENCY Defined for Kids

deficiency

noun de·fi·cien·cy \di-ˈfi-shən-sē\
plural de·fi·cien·cies

Definition of DEFICIENCY for Kids

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

deficiency

noun de·fi·cien·cy \di-ˈfish-ən-sē\
plural de·fi·cien·cies

Medical Definition of DEFICIENCY

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