vitelline membrane
noun
: a membrane enclosing an egg that comprises the zona pellucida in mammals and that upon fertilization splits off from the surface of the egg forming a fertilization membrane in many invertebrates and amphibians and in some fish
Word History
First Known Use
1845, in the meaning defined above
Time Traveler
The first known use of vitelline membrane was
in 1845
Dictionary Entries Near vitelline membrane
Cite this Entry
“Vitelline membrane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitelline%20membrane. Accessed 18 Apr. 2024.
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Kids Definition
vitelline membrane
noun
vi·tel·line membrane
vī-ˈtel-ən-,
-ˌēn-,
-ˌīn-
: a membrane that encloses an egg and that in mammals is a thick transparent noncellular layer
Medical Definition
vitelline membrane
noun
: a membrane enclosing the egg proper and corresponding to the plasma membrane of an ordinary cell
More from Merriam-Webster on vitelline membrane
Britannica.com: Encyclopedia article about vitelline membrane
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