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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First Known Use of DEFICIENCY

1603
DEFICIENCIES 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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