Pedicellaria Ped`i*cel*la"ri*a, n.; pl. {Pedicellari[ae]}. [NL. See {Pedicel}.] (Zo["o]l.) A peculiar forcepslike organ which occurs in large numbers upon starfishes and echini. Those of starfishes have two movable jaws, or blades, and are usually nearly, or quite, sessile; those of echini usually have three jaws and a pedicel. See Illustration in Appendix. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • pedicellariae — n. pl. [L. pediculus, little foot] (ECHINODERMATA) In Echinoidea and Asteroidea, stalked pincer like structures, usually armed with teeth, used for removal of foreign particles and prevention of larvae of sessile organisms from settling on the… …   Dictionary of invertebrate zoology

  • Pedicellaria — Pedicellariae (sing. pedicellaria) are commonly found on Echinoderms, particularly of the class Asteroidea. They serve to keep the body surface clear of encrusting organisms, though some pedicellariae aid in food capture. Each pedicellaria is… …   Wikipedia

  • Pedicellarie — Pedicellariae Pedicellarien sind kleine „Greiforgane“ der Stachelhäuter. Sie bestehen aus Mesenchym, kalkigen Greifelementen (zwei bei Seesternen und drei bei Seeigeln), Muskulatur, Nerven und Sinneszellen und sind von lebender Epidermis… …   Deutsch Wikipedia

  • echinoderm — /i kuy neuh derrm , ek euh neuh /, n. any marine animal of the invertebrate phylum Echinodermata, having a radiating arrangement of parts and a body wall stiffened by calcareous pieces that may protrude as spines and including the starfishes, sea …   Universalium

  • Strongylocentrotus droebachiensis — Taxobox name = Green sea urchin image caption = Strongylocentrotus droebachiensis regnum = Animalia phylum = Echinodermata classis = Echinoidea subclassis = Euechinoidea ordo = Echinoida familia = Strongylocentrotidae genus = Strongylocentrotus… …   Wikipedia

  • Starfish — For other uses, see Starfish (disambiguation). Asteroidea redirects here. For the Asteraceae subfamily, see Asteroideae. Sea Stars Temporal range: Ordovician–Recent …   Wikipedia

  • sea star — n. starfish. [1560 70] * * * ▪ echinoderm also called  starfish   any marine invertebrate of the class Asteroidea (phylum Echinodermata) having rays, or arms, surrounding an indistinct central disk. Despite their older common name, they are not… …   Universalium

  • starfish — /stahr fish /, n., pl. (esp. collectively) starfish, (esp. referring to two or more kinds or species) starfishes. any echinoderm of the class Asteroidea, having the body radially arranged, usually in the form of a star, with five or more rays or… …   Universalium

  • sea urchin — sea ur·chin (seґ urґchin) any of various marine animals of the class Echinoidea, having round bodies enclosed in a shell with spiny processes and pedicellariae protruding from it. Genera such as Diadema and Echinothrix may secrete venom from… …   Medical dictionary

  • Papula — For the skin condition, see papule. Papulae (sing. papula), also known as dermal branchiae or skin gills, are projections of the coelom of Asteroidea that serve in respiration and waste removal. Papulae are soft, covered externally with the… …   Wikipedia

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