trochlea

troch·le·a   (trŏk'lē-ə)    n.   pl. troch·le·ae (-lē-ē') An anatomical structure that resembles a pulley, especially the part of the distal end of the humerus that articulates with the ulna. [Latin, system of pulleys, from Greek trokhileia; akin to trekhein, to run.]

Main Entry: troch·lea
Pronunciation: 'träk-lE-&
Function: noun
: an anatomical structure resembling a pulley: as a : thearticular surface on the medial condyle of the humerus that articulates with the ulna b : the fibrous ring in the inner upper part of the orbit through which the tendon of the superioroblique muscle of the eye passes

trochlea troch·le·a (trŏk'lē-ə)
n. pl. troch·le·ae (-lē-ē')

1. An anatomical structure that resembles a pulley, especially the part of the distal end of the humerus that articulates with the ulna.

2. A fibrous loop in the eye socket near the nasal process of the frontal bone, through which the tendon of the superior oblique muscle of the eye passes.