Source : Webster's Revised Unabridged Dictionary (1913)

Entoderm \En"to*derm\, n. [Ento- + Gr. ? skin.] (Biol.)
   See {Endoderm}, and Illust. of {Blastoderm}.

Source : WordNet®

entoderm
     n : the inner germ layer that develops into the lining of the
         digestive and respiratory systems [syn: {endoderm}, {endoblast},
          {entoblast}, {hypoblast}]