The Collaborative International Dictionary
Trochlea \Troch"le*a\, n. [L., a case or sheaf containing one or more pulleys, Gr. ?. See Trochilics.]
(Mach.) A pulley. [Obs.]
(Anat.) 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.
Wiktionary
n. (context anatomy English) Structure resembling a pulley, typically in reference to the area connecting the upper and lower arm.
Wikipedia
Usage examples of "trochlea".
First I put the joint back in place, slipping the ridges of the tibialtarsal trochlea into the grooves at the distal end of the tibia as I had done so often in the anatomy lab at college.
The cartilage on the exposed posterior portion of the trochlea seems healthy.