| n. | 1. | (Physiol.) The formation of ova or eggs in the ovary, and the discharge of the same. In the human female the discharge occurs about halfway between menstruation times. |
| Noun | 1. | ovulation - the expulsion of an ovum from the ovary (usually midway in the menstrual cycle) Antonyms: anovulation - the absence of ovulation due to immaturity or post-maturity or pregnancy or oral contraceptive pills or dysfunction of the ovary |
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