trophoblast

noun
tro·​pho·​blast | \ˈtrō-fə-ˌblast \

Definition of trophoblast 

: the outer layer of the mammalian blastocyst that supplies nutrition to the embryo and facilitates implantation

Other Words from trophoblast

trophoblastic \ ˌtrō-​fə-​ˈbla-​stik \ adjective

First Known Use of trophoblast

1889, in the meaning defined above

History and Etymology for trophoblast

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The first known use of trophoblast was in 1889

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trophoblast

noun
tro·​pho·​blast | \ˈtrō-fə-ˌblast \

Medical Definition of trophoblast 

: the outer layer of the mammalian blastocyst that supplies nutrition to the embryo, facilitates implantation by eroding away the tissues of the uterus with which it comes in contact allowing the blastocyst to sink into the cavity formed in the uterine wall, and differentiates into the extraembryonic membranes surrounding the embryo

called also trophoderm

Other Words from trophoblast

trophoblastic \ ˌtrō-​fə-​ˈblas-​tik \ adjective

More from Merriam-Webster on trophoblast

Britannica.com: Encyclopedia article about trophoblast

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