The first rudiments of an organism, whether animal or plant

The young of an animal in the womb, or more specifically, before its parts are developed and it becomes a fetus (see Fetus).

The germ of the plant, which is inclosed in the seed and which is developed by germination.

Pertaining to an embryo; rudimentary; undeveloped; as, an embryo bud.

embryon = fruit of womb before birth, from bryein = to grow, swell out.

Before birth, the maturing cells that will grow into a fully formed organism.

a basic cell of life

a collection of cells minute in scale