n.; pl. -bra [L. labrum, lip]
1. A lip or edge.
2. (ARTHROPODA: Chelicerata)
In Araneae, has been incorrectly used for the labium.
3. (ARTHROPODA: Crustacea)
The unpaired outgrowth arising in front of the mouth and often covering it; upper lip.
4. (ARTHROPODA: Insecta)
The upper lip located below the clypeus and in front of the other mouth parts.
5. (ARTHROPODA: Trilobita)
The hypostoma of a trilobite fossil.
6. (ECHINODERMATA: Echinoidea)
A flap of the interambulacrum which projects over the ventral peristome.

Online Dictionary of Invertebrate Zoology. . 2005.

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  • labrum — LÁBRUM s.n. (anat.) Structură anatomică în formă de buză. ♦ Buză superioară la insecte şi la mamifere. – Din lat. labrum. Trimis de LauraGellner, 16.05.2004. Sursa: DEX 98  LÁBRUM s. (anat.) buză superioară. (labrum la insecte.) Trimis de siveco …   Dicționar Român

  • Labrum — Constelación Crater Ascensión recta α 11h 19min 20,45s Declinación δ 14º 46’ 42,7’’ Distancia …   Wikipedia Español

  • Labrum — (Latin for lip ) can refer to: * In architecture, the large vessel of a warm bath in the Roman thermae. These were cut out of great blocks of marble and granite, and have generally an overhanging lip. There is one in the Vatican of porphyry over… …   Wikipedia

  • labrum — m. anat. Labio. ⊆ Borde. Medical Dictionary. 2011. labrum labio, borde, rodete artic …   Diccionario médico

  • labrum — (n.) lip or lip like part, 1816, in various anatomical and zoological uses, from L. labrum, cognate with labium lip (see LIP (Cf. lip) (n.)). Also noted mid 15c. as the name of some herb …   Etymology dictionary

  • Labrum — La brum, n.; pl. L. {Labra}, E. {Labrums}. [L.] 1. A lip or edge, as of a basin. [1913 Webster] 2. (Zo[ o]l.) (a) An organ in insects and crustaceans covering the upper part of the mouth, and serving as an upper lip. See Illust. of {Hymenoptera} …   The Collaborative International Dictionary of English

  • Labrum — (lat.), 1) so v.w. Labium; 2) Wanne od. Becken von Thon, Marmor, Porphyr, Metall, zum Baden od. auch zur Aufbewahrung von Öl u. Wein …   Pierer's Universal-Lexikon

  • Labrum — ⇒ Mundwerkzeuge …   Deutsch wörterbuch der biologie

  • labrum — [lā′brəm, lab′rəm] n. pl. labra [lā′brə, lab′rə] [ModL < L, lip] a lip or liplike edge; esp., the upper or front lip of insects and other arthropods …   English World dictionary

  • Labrum — In medicine, a ring of fibrocartilage (fibrous cartilage) around the edge of the articular (joint) surface of a bone. The Latin labrum means lip. The term is used to designate a lip, edge, or brim. Plural, labra. The glenoid labrum is a ring of… …   Medical dictionary

  • labrum — A bulbous structure lying next to the epistome and bordering the anterior margin of the oral opening. (Syn. upper lip) [Holdich and Jones, 1983]. An unpaired, flat segment of the cephalon that articulates with the clypeus, and anteriorly covers… …   Crustacea glossary

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