GCIDE(0.00 / 0 votes)Rate this definition: 1  dibs(n.) A small amount of money. 2  dibs(n.) A right or claim, such as the right of use, or of first choice; as, I have dibs on the binoculars after Jim is finished..
Ravines and gullies are erosional features that exist on a continuum of scales. A ravine is defined as a small, narrow, and deep depression, smaller than a valley, and larger than a gully (Bates and Jackson, 1984). Both grow by head cutting. Ravines are usually longer and deeper than gullies. Gullies may be small enough to plow, these are ephemeral gullies.
A valley is a hollow or surface depression of the earth bounded by hills or mountains, a natural trough in the earth's surface, that slopes down to a stream, lake or the ocean, formed by water and/or ice erosion.Systems of valleys extend through plains, hills, and mountains. valley's sides are called valley walls or valley slopes. A valley wall is the side slope of a stream or glacial valley. Rain, frost, wind and the atmosphere are loosening materials which fall into the stream and are carried away.