Trochlea

[trɒkliә]

Definition

(n.) A pulley.

(n.) A pulley, or a structure resembling a pulley; as, the trochlea, or pulleylike end, of the humerus, which articulates with the ulna; or the trochlea, or fibrous ring, in the upper part of the orbit, through which the superior oblique, or trochlear, muscle of the eye passes.

Checked by Joseph

Definition

n. a pulley-like cartilage through which the superior oblique muscle of the eye-ball passes: in the elbow-joint the articular surface of the lower extremity of the humerus grasped by the greater sigmoid cavity of the ulna.—adjs. Troch′lēar shaped like a pulley; Troch′lēary relating to the trochlea.

Checker: Phyllis