Webster’s Revised Unabridged Dictionary · 1913 Entoderm En′to·derm (ĕn′tō·dẽrm), n. [Ento- + Gr. δέρμα skin.] (Biol.) See Endoderm, and Illust. of Blastoderm. ‹ Entocuneiform Entodermal ›