hypoblast

noun
hy·​po·​blast | \ˈhī-pə-ˌblast \

Definition of hypoblast 

: the endoderm of an embryo

First Known Use of hypoblast

1875, in the meaning defined above

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The first known use of hypoblast was in 1875

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hypoblast

noun
hy·​po·​blast | \ˈhī-pə-ˌblast \

Medical Definition of hypoblast 

: the endoderm of an embryo

called also endoblast, entoblast

Other Words from hypoblast

hypoblastic \ˌhī-​pə-​ˈblas-​tik \ adjective

More from Merriam-Webster on hypoblast

Britannica.com: Encyclopedia article about hypoblast

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