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[trok-lee-uh] /ˈtrɒk li ə/
noun, plural trochleae
[trok-lee-ee] /ˈtrɒk liˌi/ (Show IPA),
trochleas. Anatomy
a pulleylike structure or arrangement of parts.
Origin of trochlea
1685-95; < Latin: pulley block or sheave < Greek trochiléa, trochil(e)ía; akin to tróchilos sheave, runner, akin to tréchein to run Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for trochlea


noun (pl) -leae (-lɪˌiː)
any bony or cartilaginous part with a grooved surface over which a bone, tendon, etc, may slide or articulate
Word Origin
C17: from Latin, from Greek trokhileia a sheaf of pulleys; related to trokhos wheel, trekhein to run
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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trochlea in Medicine

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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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