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embryo    音标拼音: ['ɛmbri,o]
n. 胎儿,胚胎,胚芽

胎儿,胚胎,胚芽

embryo
n 1: (botany) a minute rudimentary plant contained within a seed
or an archegonium
2: an animal organism in the early stages of growth and
differentiation that in higher forms merge into fetal stages
but in lower forms terminate in commencement of larval life
[synonym: {embryo}, {conceptus}, {fertilized egg}]


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  • Embryo - Wikipedia
    A newly developing human is typically referred to as an embryo until the ninth week after conception, when it is then referred to as a fetus In other multicellular organisms, the word embryo can be used more broadly to any early developmental or life cycle stage prior to birth or hatching
  • Embryo | Description, Characteristics, Development | Britannica
    An embryo is the early developmental stage of an animal while it is in the egg or within the uterus of the mother In humans the term is applied to the unborn child until the end of the seventh week following conception
  • What Is an Embryo? Definition and Development - ScienceInsights
    An embryo is the earliest stage of a developing baby, spanning from fertilization (when sperm meets egg) through the first eight weeks of development After those eight weeks, it’s called a fetus
  • EMBRYO Definition Meaning - Merriam-Webster
    : an animal in the early stages of development that are marked by cleavage, the laying down of the basic tissues, and the formation of primitive organs and organ systems compare fetus : a tiny young plant within a seed : a beginning or undeveloped stageused especially in the phrase in embryo
  • What Is a Baby in the Womb Called: Embryo or Fetus?
    Embryo or fetus? Learn what a developing baby is called at each stage of pregnancy and why the medical terms actually matter
  • Embryo | Anatomy and Physiology | Research Starters - EBSCO
    An embryo is the early developmental stage of a multicellular organism, particularly in humans, where it develops from conception until the eighth week of pregnancy
  • Embryo - Definition and Examples - Biology Online Dictionary
    An embryo is a newly fertilized egg (zygote) up till the eighth week of development as it transforms through the morula, blastula, gastrula, and organogenesis stages
  • Embryo - New World Encyclopedia
    In humans, the embryo is defined as the organism from the time of implantation in the uterus until about the eighth week, while the fetus is the stage from this time until birth
  • What is an Embryo? (with pictures) - AllTheScience
    What is an Embryo? An embryo is an organism in the early stages of development which cannot survive on its own The precise definition of it varies; in humans, for example, a fertilized egg may be considered an embryo until around the eighth week of pregnancy, at which point it is termed a fetus
  • Embryo - Health Library | NewYork-Presbyterian
    When a fertilized egg has implanted in the uterus, the group of cells that will become a baby is called an embryo A developing, fertilized egg is known by several names within the first 2 weeks after conception, including zygote, morula (day 4), and blastocyst (day 5)





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