|—n , pl -bryos|
|1.||an animal in the early stages of development following cleavage of the zygote and ending at birth or hatching|
|2.||Compare fetus the human product of conception up to approximately the end of the second month of pregnancy|
|3.||a plant in the early stages of development: in higher plants, the plumule, cotyledons, and radicle within the seed|
|4.||an undeveloped or rudimentary state (esp in the phrase in embryo)|
|5.||something in an early stage of development: an embryo of an idea|
|[C16: from Late Latin, from Greek embruon, from bruein to swell]|
embryo em·bry·o (ěm'brē-ō')
n. pl. em·bry·os
An organism in its early stages of development, especially before it has reached a distinctively recognizable form.
An organism at any time before full development, birth, or hatching.
The fertilized egg of a vertebrate animal following cleavage.
In humans, the prefetal product of conception from implantation through the eighth week of development.
embryo- or embry-
|embryo (ěm'brē-ō') Pronunciation Key
embryonic adjective (ěm'brē-ŏn'ĭk)
A developing plant or animal. A plant embryo is an undeveloped plant inside a seed. An animal embryo is the animal as it develops from the single cell of the zygote until birth. Among humans and most other mammals, the embryo is carried in the mother's womb.
Note: The term is occasionally used to denote a new or developing idea or project: “The idea for the complete theory was already present in his work, in embryo form, in 1950.”