D defs.my
Entry 2 senses Webster, 1913

Copulation

· Cop·u·la·tion · IPA /kɒp.jəˈleɪ.ʃən/
01 n. The act of coupling or joining; union; conjunction.
  1. 1.
    The act of coupling or joining; union; conjunction.
    “Wit, you know, is the unexpected copulation of ideas.” Johnson.
  2. 2.
    The coming together of male and female in the act of generation; sexual union; coition.