Medical Dictionary
2 ENTRIES FOUND:

dumb

adj \ˈdəm\

Definition of DUMB

1
:  lacking the human power of speech <dumb animals>
2
of a person often offensive :  lacking the ability to speak
dumb·ly \ˈdəm-lē\ adverb
dumb·ness noun
April 01, 2015
diapause Hear it
a period of physiological dormancy
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears