Interval \In"ter*val\, Intervale \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.