Emanating from or pertaining to embryo. See also embryo.
- e. death — see early embryonic mortality (below).
- e. disk — larger cells of the mammalian blastocyst which develop into the embryo.
- early e. mortality — death of the embryo, i.e. before it becomes a fetus; a principal cause of temporary infertility in farm livestock. Amongst causes are errors in timing of insemination, chromosomal defects, asynchronous development of the endometrium.
- e. period — see embryo.
- e. regulation — ability of embryonic tissues to recognize changes in their size and location and to make the necessary adjustments to form the disk-shaped assembly of appropriate structures.
- e. stem cell — stem cell of fetal origin.
- e. vesicle — see chorionic vesicle.
