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oestrous cycle

noun

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 stageSee oestrus

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Zoom Through “Spin Class” With These 10 Cycling TermsCycling no doubt courses throughout our life and culture, but so does the language of the sport and activity. So, strap on your helmets: we're going to spin through some of the zippiest terms in cycling, past and present.
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Words nearby oestrous cycle

oestrin, oestriol, oestrogen, oestrone, oestrous, oestrous cycle, oestrus, oeuvre, of, of a kind, of a piece
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012