The Collaborative International Dictionary
Pedicellariae
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.
Wiktionary
pedicellariae
n. (plural of pedicellaria English)