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- Dictionaryem·bry·o/ˈembrēˌō/
noun
- 1. an unborn or unhatched offspring in the process of development, in particular a human offspring during the period from approximately the second to the eighth week after fertilization (after which it is usually termed a fetus). Similar
- 2. a thing at a rudimentary stage that shows potential for development: "a simple commodity economy is merely the embryo of a capitalist economy" Similar
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: 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. b.
Aug 13, 2023 · An embryo refers to the early developmental stage of a multicellular organism that follows fertilization. This stage represents a crucial juncture in the life cycle, transitioning from a single fertilized cell into a complex organism with specialized tissues and structures.
An animal in its earliest stage of development, before all the major body structures are represented. In humans, the embryonic stage lasts through the first eight weeks of pregnancy. In humans, other placental mammals, and other viviparous animals, young born as embryos cannot thrive.
Jul 6, 2017 · Learn what an embryo is and how it develops in animals and plants. Find out the stages of mammalian embryonic development, from cleavage to organogenesis, and test your knowledge with a quiz.
The embryonic period varies from species to species. In human development, the term fetus is used instead of embryo after the ninth week after conception, [19] whereas in zebrafish, embryonic development is considered finished when a bone called the cleithrum becomes visible. [20]
An embryo is an animal or plant that is developing in its mother's womb, an egg, or a seed. Learn more about the meaning, pronunciation, and usage of the word embryo with examples and collocations.
an animal that is developing either in its mother's womb or in an egg, or a plant that is developing in a seed: Between the eighth week of development and birth a human embryo is called a fetus. in embryo formal. developing and not yet complete: The department's plans for enlargement are still in embryo. See more.
