"ˌ noun
Etymology: New Latin, from radio- (from Latin radius ) + ulna
: a single bone in the forelimb of an amphibian (as a frog) that represents fusion of the separate radius and ulna of higher forms
"ˌ noun
Etymology: New Latin, from radio- (from Latin radius ) + ulna
: a single bone in the forelimb of an amphibian (as a frog) that represents fusion of the separate radius and ulna of higher forms
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012