trochlea

Noun

troch=le=a

CIDE DICTIONARY

trochlea, n. [L., a case or sheaf containing one or more pulleys, Gr. . See Trochilics.].

A pulley. [1913 Webster]
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. [1913 Webster]

trochlea, n. (pl. trochleae) Anat. a pulley-like structure or arrangement of parts, e.g. the groove at the lower end of the humerus.

Derivative

trochlear adj.

Etymology

L, = pulley f. Gk trokhilia