Fitting into or onto a corresponding part, as a matched plug and socket.(adjective)
Pairing of organisms for copulation.(noun)
Present participle of mate.(verb)
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Use "mating" in a sentence
"Prior research by the same researchers (also adopting the Social Relations Lens Model) found that men with a long-term mating orientation (which is correlated with reduced levels of extraversion) and shy men (which is correlated with higher levels of neuroticism) get the short end of the stick in rapid mate-selection settings such as speed dating."
"Women need to be more selective about choosing partners, especially under short-term mating conditions, because they're the ones who must care for their young."
"On the aspect of a possible underlying genetic predisposition to racial selectivity in mating ..."