trophoblast

noun tro·pho·blast \ ˈtrō-fə-ˌblast \
|Updated on: 12 Jun 2018

Definition of trophoblast

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

trophoblastic

play \ˌtrō-fə-ˈbla-stik\ adjective

Origin and Etymology of trophoblast

International Scientific Vocabulary


Medical Dictionary

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

trophoblastic

play \ˌtrō-fə-ˈblas-tik\ adjective

Learn More about trophoblast


Seen and Heard

What made you want to look up trophoblast? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to hasten

Get Word of the Day daily email!

Test Your Vocabulary

Test Your Emoji Exceptionalism

  • test-your-emoji-exceptionalism-written-with-a-lot-of-emoji
  • What is this emoji intended to represent: 🤳
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!