Breadcrumb Home > Dictionary > Index B bipinnaria: Meaning and Definition of Find definitions for: bi•pin•nar•i•a Pronunciation: (bī"pi-nâr'ē-u), [key] — pl. -nar•i•ae -nar•i•as. the free-swimming, bilaterally symmetrical larva of certain starfishes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Biphetamine bipinnate TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: supertonic Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language