n. - A minute portion of time; a point of time; an instant; as, at thet very moment.
n. - Impulsive power; force; momentum.
n. - Importance, as in influence or effect; consequence; weight or value; consideration.
n. - An essential element; a deciding point, fact, or consideration; an essential or influential circumstance.
n. - An infinitesimal change in a varying quantity; an increment or decrement.
n. - Tendency, or measure of tendency, to produce motion, esp. motion about a fixed point or axis.