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Definition of "labrum" [‖La•brum]

  • A lip or liplike structure, such as the one forming the roof of the mouth in insects. (noun)
  • The outer margin of the opening of a gastropod shell. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "labrum" in a sentence
  • "You’ve pulled a ligament called the labrum, which is what the cartilage is attached to in order to hold your shoulder bone in the socket."
  • "The labrum is a fibrous structure that surrounds the rim of the hip socket ( "acetabulum") and has an important sealing function that protects the cartilage layers of the hip like a "gasket seal.""
  • "The labrum was a great basin or round vase of white marble, rather more than five feet in diameter, into which the hot water bubbled up through a pipe in its centre, and served for the partial ablutions of those who took the vapor-bath."