labrum definition

  • noun:
    • A lip or liplike construction, like the one creating the roof of this mouth in pests.
    • The external margin associated with the orifice of a gastropod layer.
    • The uppermost for the mouthparts (trophi) of a typical insect, particularly a cockroach. Typically resembles an upper lip and kinds area of the roofing associated with lips in such bugs.
    • Any of a number of lip-like forecasts.
    • a sizable basin of tepid to warm water, with an overhanging lip, in a Roman bath.
    • A lip or edge, since a basin.
    • An organ in bugs and crustaceans since the top an element of the mouth, and offering as an upper lip. See Illust. of Hymenoptera.
    • The exterior margin regarding the aperture of a shell. See Univalve.
    • In zoöl, alip or lip-like part. Especially
    • In Rom. archæol., a bath-tub, especially one of those of hard, fine material more or loss richly sculptured, rather common in the museums of Italy. Also called lavabrum.

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