Menopause was a stage of the Human female reproductive cycle that occurred mid-life as the ovaries stopped producing estrogen, causing the reproductive system to gradually shut down.
The Betazoid phase was similar to the Human menopause, but unlike with menopause, a Betazoid female became fully sexual as her sex drive increased fourfold or more. (TNG: "Manhunt")
When Odo began experiencing fluctuations with his morphogenic matrix in 2372, Doctor Bashir suggested that the fluctuations could possibly the result of a normal biological process for Changelings similar to puberty or menopause. (DS9: "Broken Link")