The length of time for which something exists or is current or valid.
The length of time for which an organism lives.
Some clams have lifespans far longer than those of human beings.
A definite period of time, specifically one-tenth of a point, or one-fortieth or one-fiftieth of an hour.
Weight or importance.
A fit; a brief tantrum.
The smallest portion of time; an instant.
A brief, unspecified amount of time.
A quantitative measure of the shape of a set of points.
A petit mal episode; such a spell.
(As in "X moment") An embarrassing event, supposed to be characteristic of some person, group, or situation.
An infinitesimal change in a varying quantity; an increment or decrement.