trochlea

[ trok-lee-uh ]

noun,plural troch·le·ae [trok-lee-ee], /ˈtrɒk liˌi/, troch·le·as.Anatomy.
  1. a pulleylike structure or arrangement of parts.

Origin of trochlea

1
1685–95; <Latin: pulley block or sheave <Greek trochiléa, trochil(e)ía; akin to tróchilos sheave, runner, akin to tréchein to run

Words Nearby trochlea

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use trochlea in a sentence

  • The trochlea (fig. 77, 5) at the distal end of the bone is a pulley-like surface, elevated at the sides and grooved in the middle.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • It articulates with the external portion of the trochlea, while the ulna articulates with the internal portion.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • The proximal end articulates with the trochlea, the distal end with the bones of the carpus.

    The Vertebrate Skeleton | Sidney H. Reynolds
  • The Knee Joint is a hinge formed by the condyles and trochlea of the femur, the patella, and the head of the tibia.

  • In the human skeleton, the internal lip of the trochlea descends lower than the external; and also lower than the condyle.

British Dictionary definitions for trochlea

trochlea

/ (ˈtrɒklɪə) /


nounplural -leae (-lɪˌiː)
  1. any bony or cartilaginous part with a grooved surface over which a bone, tendon, etc, may slide or articulate

Origin of trochlea

1
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 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012