Al-lū'vi-al, a.

a. [See ALLUVION.]

1. Pertaining to, contained in, or composed of, alluvium; of river origin or formation; relating to the deposits of sand, clay, or gravel, made by river action.
2. Washed ashore or down a stream; of fresh-water origin, whether on the borders of rivers or lakes; though sometimes extended to marine action along the borders of the sea, or to that resulting from the sweep of waves over the land. Dana.