n. A space of time incalculably or indefinitely small.n. Precise point of time; exact or very instant, as of a motion, action, or occurrence: as, at that moment he expired.n. A brief interval; the passing time: in the phrase for aor the moment: as, for a moment he was at a loss.n. The present time; especially, with the definite article, the precise instant of opportunity.n. Momentum; impetus; moving cause; impelling force or occasion.n. Notable purport; weight or value; importance; consequence: as, his opinions are of little moment to us.n. A forcible or convincing plea.n. An essential or constituent element; an important factor.n. In mathematics, an increment or decrement; an infinitesimal change in a varying quantity.n. In mech., in general, effect; avail.n. With reference to a line or axis, the product of the component of the force in the plane perpendicular to the line by the distance of that component from that line.To order or arrange to a moment.n. In statistics, influence in determining the position of the center or of the axis of distribution, as of population or resources.