hypoblast Meaning, Definition & Usage

  1. noun the inner germ layer that develops into the lining of the digestive and respiratory systems
    entoderm; endoderm; endoblast; entoblast.

WordNet

Hy"po*blast noun
Etymology
Pref. hypo- + -blast.
Definitions
  1. (Biol.) The inner or lower layer of the blastoderm; -- called also endoderm, entoderm, and sometimes hypoderm. See Illust. of Blastoderm, Delamination, and Ectoderm.

Webster 1913