The radius and ulna considered together as a unit; specifically (in frogs and toads, and certain other tetrapods) a single bone of the forelimb consisting of a fused radius and ulna.
Origin
Late 19th century; earliest use found in The Lancet.
Definition of radioulna in US English:
radioulna
noun
Anatomy Zoology
The radius and ulna considered together as a unit; specifically (in frogs and toads, and certain other tetrapods) a single bone of the forelimb consisting of a fused radius and ulna.
Origin
Late 19th century; earliest use found in The Lancet.