n. 内胚层

[医] 内胚层

[ noun ]
the inner germ layer that develops into the lining of the digestive and respiratory systems
<noun.animal>

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

Hypoblast \Hy"po*blast\, n. [Pref. hypo- + -blast.] (Biol.)
The inner or lower layer of the blastoderm; -- called also
{endoderm}, {entoderm}, and sometimes {hypoderm}. See Illust.
of {Blastoderm}, {Delamination}, and {Ectoderm}.