embryonic membrane

noun

: a structure (such as the amnion) that derives from the fertilized ovum but does not form a part of the embryo

Word History

First Known Use

1947, in the meaning defined above

Time Traveler

The first known use of embryonic membrane was in 1947

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embryonic layer

embryonic membrane

embryonic vesicle

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“Embryonic membrane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/embryonic%20membrane. Accessed 4 Nov. 2025.

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Medical Definition

embryonic membrane

noun

: a structure (as the amnion) that derives from the fertilized ovum but does not form a part of the embryo

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embryonic membrane

noun

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