embryoとは 意味・読み方・使い方

語源

Borrowed from Medieval Latin embryō, from Ancient Greek ἔμβρυον (émbruon, “fetus”), from ἐν (en, “in-”) + βρύω (brúō, “I grow, swell”). Possibly related to Hebrew עֻבָּר (“fetus, embryo”) (ʊbar).

発音

• (Received Pronunciation) IPA: /ˈɛmbɹi.əʊ/
• (General American) IPA: /ˈɛmbɹi.oʊ/
• ハイフネーション: em‧bryo

名詞

embryo (plural embryos or embryones)

1. In the reproductive cycle, the stage after the fertilization of the egg that precedes the development into a fetus.
   • 2015 August 18, Clelia De-la-Peña et al., “The role of chromatin modifications in somatic embryogenesis in plants”, in Frontiers in Plant Science‎, volume 6, →DOI:

     SE onset depends on a complex network of interactions among plant growth regulators, mainly auxins and cytokinins, during the proembryogenic early stages, and ethylene and gibberellic and abscisic acids later in the development of somatic embryos.

   • 2015 December 4, “Divergent RNA Localisation Patterns of Maternal Genes Regulating Embryonic Patterning in the Butterfly Pararge aegeria”, in PLOS ONE‎, →DOI:

     In situ hybridisations were performed on devitellinised embryos still wrapped around the yolk and on embryos with the yolk dissected away.

   • 2019 January 23, Susan Scutti, “Climate change will affect gender ratio among newborns, scientists say”, in CNN‎:

     Though scientists do not know how stress affects gestation, Fukuda theorizes that the vulnerability of Y-bearing sperm cells, male embryos and/or male fetuses to stress is why “subtle significant changes in sex ratios” occur.

   • 2023 June 14, Brenda Goodman, “Scientists report creation of first human synthetic model embryos”, in CNN‎:

     They include cells that would typically go on to develop a yolk sac, a placenta and the embryo itself.

2. An organism in the earlier stages of development before it emerges from the egg, or before metamorphosis.
3. In viviparous animals, the young animal's earliest stages in the mother's body.
4. In humans, usually the cell growth of the child within the mother's body, through the end of the seventh week of pregnancy.
5. (botany) A rudimentary plant contained in the seed.
6. (figurative) The beginning; the first stage of anything.
   • 1731 (date written), Simon Wagstaff [pseudonym; Jonathan Swift], “An Introduction to the Following Treatise”, in A Complete Collection of Genteel and Ingenious Conversation, […], London: […] B[enjamin] Motte […], published 1738, →OCLC, page lxxviii:

     […] while the Company little ſuſpected what a noble Work I had then in Embryo […]

   • 1749, Henry Fielding, The History of Tom Jones, a Foundling, volume (please specify |volume=I to VI), London: A[ndrew] Millar, […], →OCLC:

     it dives into the heart of the observed, and there espies evil, as it were, in the first embryo […]

   • 1860 January – 1861 April, Anthony Trollope, Framley Parsonage. […], volume (please specify |volume=I to III), London: Smith, Elder and Co., […], published April 1861, →OCLC:

     Lord Lufton, with his barony and twenty thousand a year, might be accepted as just good enough; but failing him there was an embryo marquis, whose fortune would be more than ten times as great, all ready to accept his child!

等位語

• fetus, foetus
• zygote

派生語

Further reading

• embryo on Wikipedia.Wikipedia

アナグラム

• Morbey, merboy