diph·the·roid
| \ ˈdif-thə-ˌrȯid
\
\
Definition of diphtheroid
(Entry 1 of 2)
: resembling diphtheria
diphtheroid
nounDefinition of diphtheroid (Entry 2 of 2)
: a bacterium (especially genus Corynebacterium) that resembles the bacterium of diphtheria but does not produce diphtheria toxin
Learn More About diphtheroid
Statistics for diphtheroid
Look-up Popularity
Cite this Entry
“Diphtheroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diphtheroid. Accessed 7 Jul. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
More Definitions for diphtheroid
diphtheroid
adjective
diph·the·roid
| \ ˈdif-thə-ˌrȯid
\
\
Medical Definition of diphtheroid
(Entry 1 of 2)
: resembling diphtheria
diphtheroid
nounMedical Definition of diphtheroid (Entry 2 of 2)
: a bacterium (especially genus Corynebacterium) that resembles the bacterium of diphtheria but does not produce diphtheria toxin
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Brand Name Vocabulary Quiz
You’re gonna need some moxie to ace this quiz
Take the quiz
-
Commonly Confused Words Quiz
Take a (break/brake) and (pore/pour) over this (c...
Take the quiz
-
True or False?
Test your knowledge - and maybe learn something a...
Take the quiz
-
Spelling Bee Quiz
Can you outdo past winners of the National Spelli...
Take the quiz
Share diphtheroid
Time Traveler for diphtheroid
The first known use of diphtheroid was in 1861
See more words from the same year