Hypoblast

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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}.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

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