Embryo



GRE TOEFL

解释

GRE 红宝书

• n.胚胎
• ［英］ n.胚胎 ( something as yet undeveloped)
• ［记］ em+bryo ( 变大) -> ( 种子等) 变大 -> 胚胎

Webster Collegiate

noun (plural embryos)

• Etymology: Medieval Latin embryon-, embryo, from Greek embryon, from en- + bryein to swell; akin to Greek bryon catkin
• Date: 1548
• 1.
  • a. 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
• 3.
  • a. 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>

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