5. Medically, the high point of a fever or peak intensity of a disease. Quotes:
(1) Barbara Whiteman (Bette Midler) to Jerry Baskin (Nick Nolte) in Down and Out in Beverly Hills (1986): ' Dave lost interest in me and I lost interest in sex. I went shopping for gratification. That's like sex without a climax.'
(2) Dante (Brian O'Halloran) and Veronica (Marilyn Ghigliotti) in Clerks (1994): ' Making a male climax isn't at all challenging. Insert somewhere close, preferably moist, thrust, repeat.'