ulno-, uln- +

(Latin: elbow; larger bone of the forearm [from Greek: olene])

ulanaris
The ulnar; a general term denoting relationship to the ulna or to the ulnar aspect of the forearm.
ulna (s), ulnae (pl)
1. The larger of the two long bones within the human forearm.

The smaller one is the radius. The ulna is on the same side of the arm as the little finger.

2. One of the bones that comprise the forearm.

The largest aspect articulates with the humerus at the elbow joint and the smallest portion of the ulna articulates with the carpal bones in the wrist.

3. The bone in the lower forelimb of vertebrate animals, roughly corresponding to the human ulna.
4. Etymology: inner bone of the forearm from Latin, literally, "elbow".
ulnad
In a direction toward the ulna.
ulnar
1. Relating to the ulna, or to any of the structures; such as, the artery, the nerve, etc., named from it it.
2. Relating to the ulnar or medial aspect of the upper limb.
3. Referring to the larger of the two long bones in the forearm.

The smaller one is the radius. The ulna is on the same side of the arm as the little finger.

ulnen
1. Referring only to the ulna.
2. Relating to the ulna independent of other structures.
ulnocarpal
1. Pertaining to the ulna and carpus (wrist; the joint between the forearm and hand, made up of eight bones).
2. Denoting the ulnar side of the wrist.
ulnometacarpal
A reference to the elbow, the wrist, and the five metacarpal bones of the palm of the hand.
ulnoradial, radioulnar
Referring to the ulna and the radius (bone on the outer or thumb side of the forearm) and denoting the two articulations, ligaments, etc., between them.

A related "elbow" family of words: ancon-.