Definitions
1.nounIn the reproductive cycle, the stage after the fertilization of the egg that precedes the development into a fetus.
2.nounAn organism in the earlier stages of development before it emerges from the egg, or before metamorphosis.
3.nounIn viviparous animals, the young animal's earliest stages in the mother's body
4.nounIn humans, usually the cell growth up to the end of the seventh week in the mother's body
5.nounA rudimentary plant contained in the seed.
6.nounThe beginning; the first stage of anything.