ectoblast ectobatic • ectoblastic · · · Info · Definitions · Synonyms · Characters · · ectoblast · · Text Latin · · Script 9 · · Length Definitions · · · (noun) the outer germ layer that develops into skin and nervous tissue. Synonyms: ectoderm, exoderm. · · Noun Definition 1 Synonyms · · · ectoderm · · Synonym 1 exoderm · · Synonym 2 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074