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The Collaborative International Dictionary
Trochlear

Trochlear \Troch"le*ar\, n. [L. trochlea block or pulley.] (Anat.) Shaped like, or resembling, a pulley; pertaining to, or connected with, a trochlea; as, a trochlear articular surface; the trochlear muscle of the eye.

Trochlear nerve. See Pathetic nerve, under Pathetic.

Wiktionary
trochlear

a. (context anatomy English) Shaped like, or resembling, a pulley; related to, or connected with, a trochlea.

WordNet
trochlear

n. either of the two cranial nerves on either side that control the superior oblique muscles of the eyes [syn: trochlear nerve, trochlearis, fourth cranial nerve]

Wikipedia

Usage examples of "trochlear".

Whereas the olfactory and optic nerves are sensory and the oculomotor and trochlear nerves are motor.

First the cranial nerves: olfactory, optic, oculomotor, trochlear, trigeminal, abducens, fa­cial, auditory, glossopharyngeal, vagus, spinal, and hypoglossal.