INTERFERENCE n.
The mutual influence, under certain conditions, of two streams of light, or series of pulsations of sound, or, generally, two waves or vibrations of any kind, producing certain characteristic phenomena, as colored fringes, dark bands, or darkness, in the case of light, silence or increased intensity in sounds; neutrali…
INTERVAL; INTERVALE 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.
LEDGER n.
ligger.] Ledger bait, fishing bait attached to a floating line fastened to the bank of a stream, pond, etc. Walton. J. H. Walsh. -- Ledger line. See Leger line, under 3d Leger, a. -- Ledger wall (Mining), the wall under a vein; the foot wall. Raymond.
LEFT a.
Left bank of a river, that which is on the left hand of a person whose face is turned downstream. -- Left bower. See under 2d Bower. -- Left center, the members whose sympathies are, in the main, with the members of the Left, but who do not favor extreme courses, and on occasions vote with the government. They sit be…