embryo

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noun em·bryo \ ˈem-brē-ˌō \

Definition of embryo

plural embryos
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

Recent Examples of embryo from the Web

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Origin and Etymology of embryo

Medieval Latin embryon-, embryo, from Greek embryon, from en- + bryein to swell; akin to Greek bryon catkin

Other Embryology Terms



EMBRYO Defined for English Language Learners

embryo

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noun

Definition of embryo for English Language Learners

  • : a human or animal in the early stages of development before it is born, hatched, etc.


EMBRYO Defined for Kids

embryo

play
noun em·bryo \ ˈem-brē-ˌō \

Definition of embryo for Students

plural embryos
1 :an unborn human or animal in the earliest stages of growth when its basic structures are being formed
2 :a tiny young plant inside a seed

Medical Dictionary

embryo

play
noun em·bryo \ ˈem-brē-ˌō \

medical Definition of embryo

plural embryos
1 archaic :a vertebrate at any stage of development prior to birth or hatching
2 :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 — compare fetus


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