Dictionary

diphtheroid

1diphtheroid

adjective diph·the·roid \ˈdif-thə-ˌrid\

Definition of DIPHTHEROID

:  resembling diphtheria

First Known Use of DIPHTHEROID

1861

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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