noun ra·dio–ul·na \ˌrā-dē-ō-ˈəl-nə\

Definition of RADIO-ULNA

:  a single bone in the forelimb of an amphibian (as a frog) that represents fusion of the separate radius and ulna of higher vertebrate forms

Origin of RADIO-ULNA

New Latin
First Known Use: 1960


Next Word in the Dictionary: radiousPrevious Word in the Dictionary: radio tubeAll Words Near: radio-ulna
March 29, 2015
discomfit Hear it
To thwart or disconcert
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