embryo

noun
em·bryo | \ˈem-brē-ˌō \
plural embryos

Definition of embryo 

1a archaic : a vertebrate at any stage of development prior to birth or hatching

b : 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

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

The fertilized egg, or embryo, is implanted in the woman's uterus. Ginger Christ And Julie Washington, cleveland.com, "Tours of Ohio fertility clinics show procedures in place to safeguard eggs, embryos (photos, videos)," 25 Mar. 2018 Even though more than 5 million babies have been born thanks to IVF since the '70s, egg and embryo freezing is by no means a sure path to parenthood. Megan Molteni, WIRED, "What Keeps Egg-Freezing Operations From Failing?," 13 Mar. 2018 Scientists can easily tell by looking through a microscope whether an egg or embryo survived a thaw, said David Ball, another past president of the Society for Assisted Reproductive Technology. Washington Post, "Fertility-clinic breakdowns baffle experts, upset couples," 12 Mar. 2018 University Hospitals has been reaching out to patients who can decide how to proceed — the only way to know if an egg or embryo is still viable is to thaw and implant it. NBC News, "Malfunction at egg freezing facility affects hundreds of patients," 9 Mar. 2018 The naval training station at the exposition grounds was represented by a thousand embryo blue-jackets. sandiegouniontribune.com, "July 4, 1917: San Diego Honors New Citizens," 4 July 2018 Injections of the drug into cave fish embryo eyes could partially rescue their development, confirming that their loss is due to changes in methylation. Diana Gitig, Ars Technica, "An evolutionary adaptation that doesn’t directly rely on new mutations," 1 June 2018 Ronaldlee Ejalu says his consent to implant an embryo is necessary, under a contract with a clinic. Fox News, "Judge declines to appoint guardian for frozen embryos," 13 June 2018 Among them were Kate and Jeremy Plants, who lost five embryos and their chance of having biological children in the incident. Plain Dealer Staff, cleveland.com, "Families mourn at service for lost eggs and embryos (photos)," 12 May 2018

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.

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First Known Use of embryo

1548, in the meaning defined at sense 1a

History and Etymology for embryo

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

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Dictionary Entries near embryo

embrue

embrute

embry-

embryo

embryogenesis

embryogeny

embryoid

Phrases Related to embryo

in embryo

Statistics for embryo

Last Updated

6 Oct 2018

Look-up Popularity

Time Traveler for embryo

The first known use of embryo was in 1548

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More Definitions for embryo

embryo

noun

English Language Learners Definition of embryo

: a human or animal in the early stages of development before it is born, hatched, etc.

embryo

noun
em·bryo | \ˈem-brē-ˌō \
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 \
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

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