: a mass of plant or animal tissue that resembles an embryo
embryoid adjective

Examples of embryoid in a Sentence

Recent Examples on the Web
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Brivanlou and other researchers are finding ways to make embryoids ever more like the real thing. — Philip Ball, Scientific American, 18 Apr. 2023

Word History

Etymology

embryo + -oid entry 1

First Known Use

circa 1927, in the meaning defined above

Time Traveler
The first known use of embryoid was circa 1927

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Cite this Entry

“Embryoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/embryoid. Accessed 27 Sep. 2026.

Medical Definition

: a mass of tissue resembling an embryo
embryoid adjective
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