embryo

noun
em·​bryo | \ ˈem-brē-ˌō How to pronounce embryo (audio) \
plural embryos

Definition of embryo

1a : an animal in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of primitive organs and organ systems especially : the developing human individual from the time of implantation to the end of the eighth week after conception
b archaic : a vertebrate at any stage of development prior to birth or hatching
2 : the young sporophyte of a seed plant usually comprising a rudimentary plant with plumule, radicle, and cotyledons
3a : something as yet undeveloped
b : a beginning or undeveloped state of something productions seen in embryo during their out-of-town tryout period— Henry Hewes

Examples of embryo in a Sentence

Recent Examples on the Web But the sound that can be observed on an ultrasound is in fact produced by the ultrasound machine, experts say — and signs of flickering reflect electrical activity produced by the embryo, not a functional heart. Claire Parker, Washington Post, 15 Sep. 2022 People in need of organs could someday have their own cells injected into the pig embryo, personalizing the pigs even further, Dr. Garry predicts. Amy Dockser Marcus, WSJ, 6 Sep. 2022 In one passage, recommendations for a form of tracing paper included paper rubbed with linseed oil or pork fat, the amniotic membrane of a cow’s embryo, or the pericardium of an ox. Anthony Grafton, The New York Review of Books, 7 Sep. 2022 Scientists stress that growing a baby from a synthetic human embryo is neither possible nor under consideration. Laura Ungar, BostonGlobe.com, 25 Aug. 2022 Durrant added that Livia is now among the female rhinos at the rhino center who could potentially serve as a surrogate mother to a northern white rhino embryo. Kyla Guilfoil, ABC News, 24 Aug. 2022 The Georgia Department of Revenue now classifies any embryo or fetus with cardiac activity as a dependent for whom the parent can claim $3,000 in personal tax exemptions per child. Laura Smythe, Forbes, 3 Aug. 2022 Because under a personhood law that embryo would have the exact same legal rights as any other human being. Taylor Wilson, USA TODAY, 4 July 2022 But little is known about one growing segment of that market: egg, sperm and embryo donation. Naomi Cahn, The Conversation, 3 May 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'embryo.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of embryo

1548, in the meaning defined at sense 1b

History and Etymology for embryo

Medieval Latin embryon-, embryo, from Greek embryon, from en- + bryein to swell; akin to Greek bryon catkin

Learn More About embryo

Dictionary Entries Near embryo

embry-

embryo

embryogenesis

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Statistics for embryo

Last Updated

24 Sep 2022

Cite this Entry

“Embryo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/embryo. Accessed 4 Oct. 2022.

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More Definitions for embryo

embryo

noun
em·​bryo | \ ˈem-brē-ˌō How to pronounce embryo (audio) \
plural embryos

Kids Definition of embryo

1 : an unborn human or animal in the earliest stages of growth when its basic structures are being formed
2 : a tiny young plant inside a seed

embryo

noun
em·​bryo | \ ˈem-brē-ˌō How to pronounce embryo (audio) \
plural embryos

Medical Definition of embryo

1 archaic : a vertebrate at any stage of development prior to birth or hatching
2 : an animal in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of primitive organs and organ systems especially : the developing human individual from the time of implantation to the end of the eighth week after conception — compare fetus

More from Merriam-Webster on embryo

Nglish: Translation of embryo for Spanish Speakers

Britannica English: Translation of embryo for Arabic Speakers

Britannica.com: Encyclopedia article about embryo

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