oestruation
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OEstruation — [OE]s tru*a tion, n. (Physiol.) The state of being under [oe]strual influence, or of having sexual desire. [1913 Webster] … The Collaborative International Dictionary of English
Oesophagostomum — A genus of strongyle nematodes (subfamily Oesophagostominae) that encyst in the intestinal wall of herbivores and primates, causing nodular disease. Larvae appear to stimulate a host reaction in the intestinal wall, forming nodules in which the… … Medical dictionary
oestrus — n. period of sexual heat; frenzy. ♦ oestrous, a. ♦ oestruate, v.i. be on heat. ♦ oestruation, n … Dictionary of difficult words
