ulna

[ uhl-nuh ]

/ ˈʌl nə /

Anatomy. the bone of the forearm on the side opposite to the thumb. Compare radius(def 7).

a corresponding bone in the forelimb of other vertebrates.

Origin of ulna

1835–45; < Latin: elbow; akin to Greek ōlénē, Old English eln ell²

ul·nar, adjective post·ul·nar, adjective

The hand deviates to the radial side, and thereby still further increases the prominence caused by the lower end of the ulna.

Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition. |Alexander Miles
The development of the fibula in general corresponds to that of the ulna.

The Vertebrate Skeleton |Sidney H. Reynolds
The radius and ulna are nearly equal in size and each consists of a long shaft terminated at either end by an epiphysis.

The Vertebrate Skeleton |Sidney H. Reynolds
The ulnar carpal (fig. 57, 5) is a somewhat larger, more irregular bone, lying adjacent to the end of the ulna.

The Vertebrate Skeleton |Sidney H. Reynolds

The odontoid process of the second vertebra is pig-like: and the tibia and fibula and radius and ulna are severally distinct.

Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 |Various

ulna

/ (ˈʌlnə) /

the inner and longer of the two bones of the human forearm

the corresponding bone in other vertebrates

ulnar, adjective

C16: from Latin: elbow, ell 1

ulna

[ ŭl′nə ]

The larger bone of the two bones of the forearm, extending from elbow to wrist on the side opposite the thumb. cubitus elbow bone

ul′nar adj.

ulna

[ ŭl′nə ]

The longer of the two bones of the forearm or lower portion of the foreleg. See more at skeleton.