Pronunciation: (em'brē-u-trof", -trôf"), [key]
the nutrient material, composed chiefly of secretions from the uterine glands, degenerating uterine tissue, and substances in the maternal blood, that nourishes a mammalian embryo prior to the formation of the placenta. Cf. hemotroph.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.