Middle Age
- menopause
The time in a woman's life in which the menstrual cycle ends.
- climacteric
A period in a man's life corresponding to menopause.
Also contains
- gestation
The period during which an embryo develops (about 266 days in humans).
- circadian rhythm
A daily cycle of activity observed in many living organisms.
- refractory period
(neurology) the time after a neuron fires or a muscle fiber contracts during which...