Dictionary entry

Brachiolaria

Webster's Dictionary 1913

‖Brach′i‐o‐la″ri‐a (�), n. pl. [NL., fr. L. brachiolum (bracch-), dim. of brachium (bracch-) arm.] (Zoöl.) A peculiar early larval stage of certain starfishes, having a bilateral structure, and swimming by means of bands of vibrating cilia.