Definition of "interval" []

• A space between two objects, points, or units. (noun)
• The amount of time between two specified instants, events, or states. (noun)
• One of a series of predetermined distances covered at regular time increments with intermittent periods of rest in an athletic workout. (noun)
• Mathematics A set of numbers consisting of all the numbers between a pair of given numbers along with either, both, or none of the endpoints. (noun)
• Mathematics A closed interval. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "[273-2] Strictly speaking, the interval between 11 Men and 13 Oc is fourteen days, but throughout this paper, by "_interval between_" two days, is to be understood the number of days to be counted _from_ one _to and including_ the other."
• "Then, assuming you still feel the total interval is non-zero, am I to presume your concept of light ray "interval" is significantly effected by traveling through a prisms or half silvered mirrors?"
• "This certain interval will give rise to the eerie phantasmatic ir-reality of the Sanatorium as a result of the contamination and rapid decomposition of time."