A rudimentary plant contained in the seed.
In the reproductive cycle, the stage after the fertilization of the egg that precedes the development into a fetus.
In viviparous animals, the young animal's earliest stages in the mother's body
The beginning; the first stage of anything.
In humans, usually the cell growth up to the end of the seventh week in the mother's body
An organism in the earlier stages of development before it emerges from the egg, or before metamorphosis.
A small fleshy projection on a plant.
Any of the small protuberances on the upper surface of the tongue often containing taste buds.
A vascular process of connective tissue extending into and nourishing the root of a hair, feather, or developing tooth.
Any of the vascular protuberances of the dermal layer of the skin extending into the epidermal layer and often containing tactile corpuscles.