- climacteric ► NOUN 1) Medicine the period of life when fertility is in decline; (in women) the menopause. 2) a critical period or event.► ADJECTIVE 1) having extreme and far-reaching implications or results; critical. 2) Medicine characteristic of or undergoing a climacteric.ORIGIN from Greek klimaktr 'critical period' , from klimax 'ladder, climax' .
English terms dictionary. 2015.