a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations | an arithmetic operation that is the inverse of division; the product of two numbers is computed |
the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause | a more or less definite period of time now or previously present |
an amount of time | |
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 | |