1. noun
a) A period in human life in which some great change is supposed to take place in the constitution. The critical periods are thought by some to be the years produced by multiplying 7 into the odd numbers 3, 5, 7, and 9; to which others add the 81st year.

Once women have traversed the turmoil of the climacteric years and reached the hormonal steady-state of the post-menopause, there is almost certainly no increase in the incidence of depression.

b) The period of life that leads up to and follows the end of menstruation in women; the change of life

[H]e was in his grand climacterick, with a florid brow, and a step like youthful agility. Sigourney, Lydia.

a) Of or pertaining to the climacteric

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