mousepox

noun

mouse·pox ˈmau̇s-ˌpäks

: a highly contagious disease of mice that is caused by a poxvirus (Orthopoxvirus ectromelia)

called also ectromelia

Browse Nearby Words

mouse

mousepox

mouth

See all Nearby Words

Cite this Entry

Style

“Mousepox.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/mousepox. Accessed 10 Nov. 2025.

Copy Citation

More from Merriam-Webster

Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.

Can you solve 4 words at once?

Can you solve 4 words at once?

Word of the Day

temerity

Listen to the pronunciation of temerity

See Definitions and Examples »

Get Word of the Day daily email!

Popular in Grammar & Usage

Using Bullet Points ( • )

More Commonly Mispronounced Words

The Difference Between 'i.e.' and 'e.g.'

What’s the difference between ‘cemetery’ and ‘graveyard’?

Democracy or Republic: What's the difference?

Popular in Wordplay

13 Wonderful Words That You're Not Using (Yet)

Ten More Words from Taylor Swift Songs

Birds Say the Darndest Things

Even More Bird Names that Sound Like Insults (and Sometimes Are)

Better Ways to Say 'This Sucks'

Popular

Using Bullet Points ( • )

13 Wonderful Words That You're Not Using (Yet)

Ten More Words from Taylor Swift Songs