a hormonally controlled cycle of activity of the reproductive organs in many female mammals. The follicular stage (growth of the Graafian follicles, thickening of the lining of the uterus, secretion of oestrogen, and ovulation, is succeeded by the luteal phase (formation of the corpus luteum and secretion of progesterone), followed by regression and a return to the first stage See oestrus
[es-truh s, ee-struh s] /ˈɛs trəs, ˈi strəs/ noun 1. . /ˈiːstrəs; ˈɛstrəs/ noun 1. a regularly occurring period of sexual receptivity in most female mammals, except humans, during which ovulation occurs and copulation can take place; heat n. see estrus. oestrus oes·trus (ěs’trəs) n. Variant of estrus.
original estimated time of arrival
[œ-vruh] /ˈœ vrə/ noun, plural oeuvres [œ-vruh] /ˈœ vrə/ (Show IPA). French. 1. the works of a writer, painter, or the like, taken as a whole. 2. any one of the works of a writer, painter, or the like. /œvrə/ noun 1. a work of art, literature, music, etc 2. the total output of a […]
[uhv, ov; unstressed uh v or, esp. before consonants, uh] /ʌv, ɒv; unstressed əv or, esp. before consonants, ə/ preposition 1. (used to indicate distance or direction from, separation, deprivation, etc.): within a mile of the church; south of Omaha; to be robbed of one’s money. 2. (used to indicate derivation, origin, or source): a […]