(US, Canada, rare, informal, chiefly in the superlative) Characteristic of a mother; motherly.

A brief compulsion to finish listening to something on the radio before leaving one's car.

(physics) Of a body in motion: the tendency of a body to maintain its inertial motion; the product of its mass and velocity, or the vector sum of the products of its masses and velocities.

(idiomatic) Immediately; instantaneously; without need of warning.

(manner) In a momentary manner; for a moment or instant. / (US, proscribed, duration) In a moment or very soon; any minute now, any time now. / Progressively; moment by moment.

Lasting for only a moment. / Happening at every moment; perpetual. / Ephemeral or relatively short-lived.

Spontaneous; impromptu.

(idiomatic) Impulse; short notice; a lack of planning.

The vector product of the charge on either pole of a dipole and the distance separating them.

(Canada, US, chiefly used by young children) One's mother