labrums

1 definition found

labrums - Collaborative International Dictionary of English v.0.48 :

  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]