Dictionary
1diphtheroid
adjective diph·the·roid \ˈdif-thə-ˌrȯid\
2diphtheroid
noun
Definition of DIPHTHEROID
: a bacterium (especially genus Corynebacterium) that resembles the bacterium of diphtheria but does not produce diphtheria toxin
First Known Use of DIPHTHEROID
1908
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