1

diphtheroid

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

Definition of diphtheroid

:resembling diphtheria

First Known Use of diphtheroid

1861


2

diphtheroid

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


Medical Dictionary

1

diphtheroid

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

medical Definition of diphtheroid

:resembling diphtheria

2

diphtheroid

noun

medical Definition of diphtheroid

:a bacterium (especially genus Corynebacterium) that resembles the bacterium of diphtheria but does not produce diphtheria toxin

Seen and Heard

What made you want to look up diphtheroid? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to buzz or drone

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!