PEDICELLARIA

Noun

pedicellaria (plural pedicellariae)

(biology) A small, stalk-shaped structure of the sea urchin and other echinoderms, which has three pincer-like structures at the end that perform cleaning functions and serve as defense against predators.

Source: Wiktionary

Ped`i*cel*la"ri*a, n.; pl. Pedicellariæ. Etym: [NL. See Pedicel.] (Zoöl.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition

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