What is Moment?

Moment definition and meaning on Dictionary terms:
an indefinitely short period of time; instant: I’ll be with you in a moment.
the present time or any other particular time (usually preceded by the): He is busy at the moment.
a definite period or stage, as in a course of events; juncture: at this moment in history.
importance or consequence: a decision of great moment.
a particular time or period of success, excellence, fame, etc.: His big moment came in the final game.
Statistics. the mean or expected value of the product formed by multiplying together a set of one or more variates or variables each to a specified power.

Philosophy. an aspect of a thing.Obsolete. an essential or constituent factor.

Mechanics. a tendency to produce motion, especially about an axis. the product of a physical quantity and its directed distance from an axis: moment of area; moment of mass.