avicularium
n.; pl. -ria [L. dim. avis, bird]
(BRYOZOA)
An enlarged pedunculate operculum of polymorphs, resembling a bird\'s beak and more intricately reinforced than those of ordinary feeding autozooids.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • Avicularium — The avicularium (pl. avicularia) in cheilostome bryozoans is a modified, non feeding zooid. The operculum, which normally closes the orifice when the zooids tentacles are retracted, has been modified to become a mandible. Strong muscles operate… …   Wikipedia

  • avicularium — avicularian, adj. /euh vik yeuh lair ee euhm/, n., pl. avicularia / lair ee euh/. Zool. a protective zooid of a bryozoan colony, having movable jaws that can be snapped shut. [ < NL; see AVI , CULE1, ARIUM] * * * …   Universalium

  • avicularium — noun A modified zooid, in some colonial bryozoans, in the form of a beak, that prevents other organisms from settling on the colony …   Wiktionary

  • avicularium — avic·u·lar·i·um …   English syllables

  • avicularium — …   Useful english dictionary

  • moss animal — bryozoan. [1880 85] * * * ▪ invertebrate Introduction also called  bryozoan,         any member of the phylum Bryozoa (also called Polyzoa or Ectoprocta), in which there are about 5,000 extant species. Another 15,000 species are known only from… …   Universalium

  • avicularian —  ̷ ̷| ̷ ̷ ̷ ̷| ̷ ̷rēən adjective Etymology: New Latin avicularium + English an : of or relating to an avicularium or avicularia …   Useful english dictionary

  • condyle — n. [Gr. kondylos, knuckle] 1. A knoblike process that forms the fulcrum for joint movement. 2. (ARTHROPODA) The surfaces between arthropod joints, that provide the fulcra on which the joints move. 3. (BRYOZOA: Gymnolaemata) In some cheilostomates …   Dictionary of invertebrate zoology

  • divaricator — n. [L. divaricatus, spread apart] 1. A muscle which causes parts to open. 2. (BRACHIOPODA) A muscle from the ventral valve to the cardinal process which opens the shell. 3. (BRYOZOA) One of a pair of muscles which open the mandible for an… …   Dictionary of invertebrate zoology

  • heterozooid — n. [Gr. heteros, different; zoon, animal] (BRYOZOA: Gymnolaemata) A specialized zooid that forms stolons, attachment discs, rootlike structures and other such vegetative parts of the colony; a bryozoan, such as an avicularium or a rhizoid …   Dictionary of invertebrate zoology

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