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单词 embryo
释义

Definition of embryo in English:

embryo

nounPlural embryos ˈɛmbrɪəʊˈɛmbriˌoʊ
  • 1An unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization (after which it is usually termed a fetus).

    Example sentencesExamples
    • A doctor caused worldwide shock and condemnation yesterday after claiming he had implanted a cloned human embryo in a woman.
    • Out of 180 embryos processed, 109 had at least one analyzable metaphase.
    • No one has yet converted a single blastomere from an eight-cell embryo into a stem cell line.
    • As starting material they used normal zygotic embryos from which callus cultures were established.
    • Meiotic spindles form after fertilization of the worm embryo in the same cytoplasm that later supports embryonic mitosis.
    • The Japanese team believed that they could use two eggs to create a viable mouse embryo.
    • Consistent with these findings, Sxl-Pe is not activated in germ cells of blastoderm embryos.
    • Double fertilization of egg cell and central cell initiates development of the diploid embryo and the triploid endosperm, respectively.
    • Implantation of the embryo in the womb may underlie many such cases.
    • Earlier this year he reportedly implanted a cloned human embryo in a woman's womb.
    • The term referred to the embryo before its implantation in the womb.
    • At this phase of development, the embryo is called the blastocyst.
    • In the context of embryos in the womb, this is manifestly untrue.
    • The eggs have to be turned to help the chick embryo develop into a healthy chick during the incubation period.
    • It is crucial for the normal development of the nervous system and the growth of blood vessels in human and other animal embryos.
    • The viruses rapidly kill off the chick embryos normally used in the vaccine production process.
    • However he says he and Antinori could implant a cloned human embryo later this year.
    • The most common mutant phenotype was an embryo with a polar body near one end and the development of one or two spindles in the middle.
    • The pathology of internal organs and skeleton in embryos was recorded.
    • Normally occurring embryonic cell death is not present in wild-type blastoderm stage embryos.
    Synonyms
    fetus, fertilized egg, unborn baby, unborn child
    1. 1.1Botany The part of a seed which develops into a plant, consisting (in the mature embryo of a higher plant) of a plumule, a radicle, and one or two cotyledons.
      Example sentencesExamples
      • Callus was formed on cotyledons, hypocotyls, and radicles of embryos.
      • The embryo matures and the seed accumulates storage products, acquires desiccation tolerance, and loses water.
      • Another type of apomictic development has been reported to occur in the gymnosperm Cupressus dupreziana, where embryos develop from unreduced pollen grains.
      • The carbohydrate treatments during the maturation period also affected the ability of the embryos to develop into plants.
      • During the autocatalytic cycle of growth and reproduction of higher plants, the embryo in the seed grows, under suitable conditions, to form a plant with leaves and roots.
  • 2A thing at a rudimentary stage that shows potential for development.

    a simple commodity economy is merely the embryo of a capitalist economy
    as modifier an embryo central bank
    Example sentencesExamples
    • He goes as long-awaited plans to create a new hub for Swindon are still at the embryo stage.
    • The design is still at its embryo stage, as it should be for an idea competition.
    Synonyms
    rudimentary version, germ, nucleus, seed, root, source
    rudiments, basics
    beginning, start, basis, mainspring

Phrases

  • in embryo

    • At a rudimentary stage with the potential for development.

      the nations of modern Europe can be discerned in embryo by the end of the first millennium
      Example sentencesExamples
      • We may think we've missed it, but as Smith talks us through her ideas, which are presented with great fluency and wit, her thesis takes shape and, in embryo at least, is persuasive.
      • To Tocqueville, this was popular sovereignty in embryo.
      • The modernised look of this town in embryo is increased by a hotel which shames many establishments of the sort found in large commercial towns.
      • You can recognise the man in embryo, marked by strong subservience to those above and superciliousness to those below him.
      • Such possibilities are still in embryo in Australia.
      • Think of it as a nice time capsule of Canadian legends in embryo, but ultimately inconsequential.
      • Mackenzie has a sure, visual touch and a mastery of cinematic language, at least in embryo.
      • Of course what we're seeing here is a liberal myth in embryo - that the Turks rather than Drake and Effingham beat the Armada.
      • The government has fiercely denied opposition claims that it has created an army in embryo, without parliament's consent.
      • It must be the first recorded sound of the authentic Connolly voice, his talent in embryo.

Derivatives

  • embryonal

  • adjective ˈɛmbrɪən(ə)lɛmˈbrʌɪən(ə)l
    • Relating to an embryo.

      the embryonal yolk sac
      Example sentencesExamples
      • embryonal tumours
      • Using this endoscopic approach, the neurosurgeon then resected most of an embryonal rhabdomyosarcoma, including the portion that was impinging on the boy's optic nerves and carotid arteries.
      • Primitive neuroectodermal tumors are rare undifferentiated sarcomas that are believed to develop from embryonal migrating cells of the neural crest.
      • In sections hybridized with the antisense riboprobe a specific signal was detected in the outermost layer of the embryonal cortex.
  • embryoid

  • adjective
    • In approximately 10% of the embryoid bodies, the researchers found small groups of cells that were spontaneously contracting, just as do the cells that develop into heart tissue in an embryo.
      Example sentencesExamples
      • Anther culture involves the induction of embryoid formation from immature pollen and subsequent regeneration of embryoids into plantlets.
      • Each cardiac embryoid contains a population of beating cardiac myocytes that is nearly homogeneous.
      • They were used to create multicellular structures called embryoid bodies, which have some of the characteristics of early embryos and the beginnings of differentiated tissue.
      • What is extraordinary is that the embryoid bodies seem to produce spontaneously the tissue and environment conducive for sperm and egg development in quite a short time in culture.

Origin

Late Middle English: via late Latin from Greek embruon 'fetus', from em- 'into' + bruein 'swell, grow'.

  • This comes via late Latin from Greek embruon ‘foetus’, from em- ‘into’ and bruein ‘swell, grow’.

 
 

Definition of embryo in US English:

embryo

nounˈembrēˌōˈɛmbriˌoʊ
  • 1An unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization (after which it is usually termed a fetus).

    Example sentencesExamples
    • It is crucial for the normal development of the nervous system and the growth of blood vessels in human and other animal embryos.
    • Consistent with these findings, Sxl-Pe is not activated in germ cells of blastoderm embryos.
    • However he says he and Antinori could implant a cloned human embryo later this year.
    • In the context of embryos in the womb, this is manifestly untrue.
    • Normally occurring embryonic cell death is not present in wild-type blastoderm stage embryos.
    • Implantation of the embryo in the womb may underlie many such cases.
    • As starting material they used normal zygotic embryos from which callus cultures were established.
    • The viruses rapidly kill off the chick embryos normally used in the vaccine production process.
    • Meiotic spindles form after fertilization of the worm embryo in the same cytoplasm that later supports embryonic mitosis.
    • The term referred to the embryo before its implantation in the womb.
    • Out of 180 embryos processed, 109 had at least one analyzable metaphase.
    • Double fertilization of egg cell and central cell initiates development of the diploid embryo and the triploid endosperm, respectively.
    • No one has yet converted a single blastomere from an eight-cell embryo into a stem cell line.
    • A doctor caused worldwide shock and condemnation yesterday after claiming he had implanted a cloned human embryo in a woman.
    • The eggs have to be turned to help the chick embryo develop into a healthy chick during the incubation period.
    • At this phase of development, the embryo is called the blastocyst.
    • Earlier this year he reportedly implanted a cloned human embryo in a woman's womb.
    • The most common mutant phenotype was an embryo with a polar body near one end and the development of one or two spindles in the middle.
    • The pathology of internal organs and skeleton in embryos was recorded.
    • The Japanese team believed that they could use two eggs to create a viable mouse embryo.
    Synonyms
    fetus, fertilized egg, unborn baby, unborn child
    1. 1.1Botany The part of a seed which develops into a plant, consisting (in the mature embryo of a higher plant) of a plumule, a radicle, and one or two cotyledons.
      Example sentencesExamples
      • During the autocatalytic cycle of growth and reproduction of higher plants, the embryo in the seed grows, under suitable conditions, to form a plant with leaves and roots.
      • The carbohydrate treatments during the maturation period also affected the ability of the embryos to develop into plants.
      • Callus was formed on cotyledons, hypocotyls, and radicles of embryos.
      • The embryo matures and the seed accumulates storage products, acquires desiccation tolerance, and loses water.
      • Another type of apomictic development has been reported to occur in the gymnosperm Cupressus dupreziana, where embryos develop from unreduced pollen grains.
  • 2A thing at a rudimentary stage that shows potential for development.

    a simple commodity economy is merely the embryo of a capitalist economy
    Example sentencesExamples
    • The design is still at its embryo stage, as it should be for an idea competition.
    • He goes as long-awaited plans to create a new hub for Swindon are still at the embryo stage.
    Synonyms
    rudimentary version, germ, nucleus, seed, root, source

Phrases

  • in embryo

    • At a rudimentary stage with the potential for further development.

      Example sentencesExamples
      • It must be the first recorded sound of the authentic Connolly voice, his talent in embryo.
      • Mackenzie has a sure, visual touch and a mastery of cinematic language, at least in embryo.
      • We may think we've missed it, but as Smith talks us through her ideas, which are presented with great fluency and wit, her thesis takes shape and, in embryo at least, is persuasive.
      • To Tocqueville, this was popular sovereignty in embryo.
      • The modernised look of this town in embryo is increased by a hotel which shames many establishments of the sort found in large commercial towns.
      • The government has fiercely denied opposition claims that it has created an army in embryo, without parliament's consent.
      • Such possibilities are still in embryo in Australia.
      • Think of it as a nice time capsule of Canadian legends in embryo, but ultimately inconsequential.
      • You can recognise the man in embryo, marked by strong subservience to those above and superciliousness to those below him.
      • Of course what we're seeing here is a liberal myth in embryo - that the Turks rather than Drake and Effingham beat the Armada.

Origin

Late Middle English: via late Latin from Greek embruon ‘fetus’, from em- ‘into’ + bruein ‘swell, grow’.

 
 
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更新时间:2025/1/27 12:04:46