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trochlear spine in Medicine

trochlear spine

n.
  1. A spicule of bone arising from the edge of the trochlear pit of the eye, giving attachment to the pulley of the superior oblique muscle of the eyeball.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.