a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations | one of the natural periods into which the year is divided by the equinoxes and solstices or atmospheric conditions |
the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause | a recurrent time marked by major holidays |
an amount of time | a period of the year marked by special events or activities in some field |
the interval taken to complete one cycle of a regularly repeating phenomenon | |
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 | |