cleavage cavity cleat work • cleavage cell · · · Info · Definitions · Synonyms · Characters · · cleavage cavity · · Text Common · · Latin · · Scripts 15 · · Length Definitions · · · (noun) the fluid-filled cavity inside a blastula. Synonyms: blastocoel, blastocoele, blastocele, segmentation cavity. · · Noun Definition 1 Synonyms · · · cleavage · · Synonym 1 segmentation · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C t latin small letter t U+0074 v latin small letter v U+0076 y latin small letter y U+0079