a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations | a natural and periodic state of rest during which consciousness of the world is suspended |
the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause | euphemisms for death (based on an analogy between lying in a bed and in a tomb) |
an amount of time | a torpid state resembling deep sleep |
the interval taken to complete one cycle of a regularly repeating phenomenon | a period of time spent sleeping |
a unit of geological time during which a system of rocks formed | |
the end or completion of something | |
(ice hockey) one of three divisions into which play is divided in hockey games | |