1. trochlear - Noun
2. trochlear - Adjective
Shaped like, or resembling, a pulley; pertaining to, or connected with, a trochlea; as, a trochlear articular surface; the trochlear muscle of the eye.
Source: Webster's dictionaryDamage to the trochlear nerve (IV) can also cause diplopia with the eye adducted and elevated. Source: Internet
Eye movement (III, IV, VI) Various deviations of the eyes due to abnormal function of the targets of the cranial nerves The oculomotor nerve (III), trochlear nerve (IV) and abducens nerve (VI) coordinate eye movement. Source: Internet