sea squirt sea squill • sea stack · · · Info · Definitions · Characters · · sea squirt · · Text Common · · Latin · · Scripts 10 · · Length 3 · · Syllables Definitions · · · (noun) ascidian that can contract its body and eject streams of water. Synonyms: sea squirt. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 q latin small letter q U+0071 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075