Breadcrumb Home > Dictionary > Index S sea squirt: Meaning and Definition of Find definitions for: sea' squirt" Pronunciation: [key] any tunicate, esp. a sessile ascidian, so called from its habit of contracting its body and ejecting streams of water when disturbed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sea squill sea stack TrendingHere are the facts and trivia that people are buzzing about. Did Birds Evolve from Dinosaurs? The Twelve Dancing Princesses Current Events This Week: January 2023 African Americans by the Numbers Andersen's Fairy Tales: Contents The Celtic Twilight: A Teller of Tales ✖ Related Content Daily Word Quiz: saturnine Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language