1. A space between two objects, points, or units. 2. The amount of time between two specified instants, events, or states. 3. One of a series of predetermined distances covered at regular time increments with intermittent periods of rest in an athletic workout. 4.Mathematicsa. A set of numbers consisting of all the numbers between a pair of given numbers along with either, both, or none of the endpoints. b. A closed interval. c. An open interval. d. A half-open interval. e. A line segment representing the set of numbers in an interval. 5.Chiefly British An intermission, as between acts of a play. 6.Music The difference, usually expressed in the number of steps, between two pitches.
ETYMOLOGY:
Middle English intervalle, from Old French, from Latin intervallum : inter-, inter- + vallum, rampart.
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