In"ter*val (?), n. [L. intervallum; inter between + vallum a wall: cf. F. intervalle. See Wall.]
1.
A space between things; a void space intervening between any two objects; as, an interval between two houses or hills.
'Twixt host and host but narrow space was left,
A dreadful interval.
Milton.
2.
Space of time between any two points or events; as, the interval between the death of Charles I. of England, and the accession of Charles II.
3.
A brief space of time between the recurrence of similar conditions or states; as, the interval between paroxysms of pain; intervals of sanity or delirium.
4. Mus.
Difference in pitch between any two tones.
At intervals, coming or happening with intervals between; now and then. "And Miriam watch'd and dozed at intervals." Tennyson. -- Augmented interval Mus., an interval increased by half a step or half a tone.
© Webster 1913.
In"ter*val (?), In"ter*vale (?), n.
A tract of low ground between hills, or along the banks of a stream, usually alluvial land, enriched by the overflowings of the river, or by fertilizing deposits of earth from the adjacent hills. Cf. Bottom, n., 7.
[Local, U. S.]
The woody intervale just beyond the marshy land.
The Century.
© Webster 1913.