Definition of "coital" [coital]

• Of or relating to the sex act or coitus (adjective)

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• "But critics found possible reasons other than underlying biology for fertility drops: for example, sexual ennui — or, as they more technically put it, a diminution in coital frequency over the course of a marriage."
• "Artificial insemination under controlled conditions would eliminate confounding factors such as variations in coital frequency or in sperm quality."
• "Seeing as how that’s the same look your sister gets every time you’re engaged in coital “bliss”."