(idiomatic) The moment of a sudden unexpected discovery.

A period of silence for quiet meditation, prayer or reflection.

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

Spontaneous; impromptu.

(idiomatic) A deciding instant; the time when a test determines or makes it apparent whether something will succeed.

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

(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.

(physics) The torque exerted on a magnet within a magnetic field; a vector, being the product of the strength of the magnet and the distance between its poles.

(humorous) A momentary lapse in concentration, resulting in an embarrassing situation.