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单词 pre-embryo
释义

Definition of pre-embryo in English:

pre-embryo

nounpriːˈɛmbrɪəʊpriˈɛmbriˌoʊ
technical
  • A human embryo or fertilized ovum in the first fourteen days after fertilization, before implantation in the uterus has occurred.

    Example sentencesExamples
    • The term pre-embryo has been embraced wholeheartedly by practitioners for reasons that are political, not scientific.
    • Implantation of the pre-embryo in the uterine wall is a highly invasive process, akin to attack by a parasite.
    • The embryos, or pre-embryos, at fertility clinics are frozen at sometime between two and five days after fertilization.
    • It is therefore plausible that non-barrier contraceptives may act at the level of the pre-implantation pre-embryo.
    • Before fourteen days, the embryo, or pre-embryo as it was scientifically known, was a loose cluster of first two, then four, then sixteen cells, undifferentiated.

Derivatives

  • pre-embryonic

  • adjective
    technical
    • Therapeutic cloning, on the other hand, is a technique in which pre-embryonic tissue cloned from human donors who are suffering from a variety of diseases like Parkinson's, Alzheimer's and diabetes would be used to produce stem cells.
 
 

Definition of pre-embryo in US English:

pre-embryo

nounprēˈembrēˌōpriˈɛmbriˌoʊ
technical
  • A human embryo or fertilized ovum in the first fourteen days after fertilization, before implantation in the uterus has occurred.

    Example sentencesExamples
    • The embryos, or pre-embryos, at fertility clinics are frozen at sometime between two and five days after fertilization.
    • Implantation of the pre-embryo in the uterine wall is a highly invasive process, akin to attack by a parasite.
    • It is therefore plausible that non-barrier contraceptives may act at the level of the pre-implantation pre-embryo.
    • The term pre-embryo has been embraced wholeheartedly by practitioners for reasons that are political, not scientific.
    • Before fourteen days, the embryo, or pre-embryo as it was scientifically known, was a loose cluster of first two, then four, then sixteen cells, undifferentiated.
 
 
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更新时间:2024/12/23 16:01:33