mating

About 3.69 uses per million words.

Meaning

1. adjective Fitting into or onto a corresponding part, as a matched plug and socket.
2. noun Pairing of organisms for copulation.
3. noun Sexual union; copulation.
4. verb present participle and gerund of mate

Similar words

conjugation coupling pairing union sexual union attached junction combination interplay assortative

Often followed by

of and season with type behavior is in system