Embryology :: Embryology (n.) The science which relates to the formation and development of the embryo in animals and plants; a study of the gradual development of the ovum until it reaches the adult stage.
Mesembryanthemum :: Mesembryanthemum (n.) A genus of herbaceous or suffruticose plants, chiefly natives of South Africa. The leaves are opposite, thick, and f/eshy. The flowers usually open about midday, whence the name..
Monembryony :: Monembryony (n.) The condition of an ovule having but a single embryo.