Labrum

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Labrum \La"brum\, n.; pl. L. {Labra}, E. {Labrums}. [L.]
     1. A lip or edge, as of a basin.
        [1913 Webster]
  
     2. (Zool.)
        (a) An organ in insects and crustaceans covering the upper


            part of the mouth, and serving as an upper lip. See
            Illust. of {Hymenoptera}.
        (b) The external margin of the aperture of a shell. See
            {Univalve}.
            [1913 Webster]