• synonyms


noun, plural bi·pin·nar·i·ae [bahy-pi-nair-ee-ee] /ˌbaɪ pɪˈnɛər iˌi/, bi·pin·nar·i·as.
  1. the free-swimming, bilaterally symmetrical larva of certain starfishes.
Show More

Origin of bipinnaria

From New Latin; see origin at bi-1, pinna, -aria
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for bipinnaria

Historical Examples

  • Bipinnaria or Branchiolaria: The larval stage of starfishes.

    The Sea-beach at Ebb-tide

    Augusta Foote Arnold

  • Thus the larv of the starfishes were called Bipinnaria, the larv of the sea-urchins Pluteus, and so on.

  • The bands of cilia have the same general form as in Bipinnaria.

  • The egg becomes a sort of infusoria, the infusoria becomes a bipinnaria, and this produces the Asterias.

    The Ocean World:

    Louis Figuier

  • The presence of two rings instead of one distinguishes the Bipinnaria from the Auricularia.