Sexual intercourse or the act of coming together; a Latin-based medical/scientific term for coitus.
From Latin coitio, derived from coire (co- meaning 'together' + ire meaning 'to go'). Literally 'coming together,' used in medical and philosophical contexts.
Medieval and Renaissance scholars used 'coition' in philosophy texts about human nature and reproduction—it was the proper academic term before 'coitus' became standard, showing how language shifts in formal discourse.
Complete word intelligence in one call. Free tier — 50 lookups/day.