period

an amount of time

“a time period of 30 years”

“hastened the period of time of his recovery”

“Picasso's blue period”

the interval taken to complete one cycle of a regularly repeating phenomenon

(ice hockey) one of three divisions into which play is divided in hockey games

a unit of geological time during which a system of rocks formed

“ganoid fishes swarmed during the earlier geological periods”

the end or completion of something

“death put a period to his endeavors”

“a change soon put a period to my tranquility”

the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause

“the women were sickly and subject to excessive menstruation”

“{'source': 'Hippocrates', 'text': 'a woman does not take the gout unless her menses be stopped'}”

“{'source': 'Aristotle', 'text': 'the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females'}”