A Cubitus

1. (archaic) The ulna.
2. (entomology) One of the major veins of the insect wing, between the media and the postcubitus; the vein running along the dorsal edge of the discal cell.
3. (anatomy) The elbow, or the corresponding joint in the forelimb of a quadruped.
4. (anatomy) The forearm; the arm from the elbow to fingertip, or the corresponding portion of a jointed limb of an animal that uses the limb for locomotion or grasping.

Synonyms

• (vein of insect wing): Cu