Word Study
alluvial
CIDE DICTIONARY
alluvial, n.
Alluvial soil; specif., in Australia, gold-bearing alluvial soil. [Webster 1913 Suppl.]
alluvial, a. [Cf. F. alluvial. See Alluvion.].
Pertaining to, contained in, or composed of, alluvium; relating to the deposits made by flowing water; washed away from one place and deposited in another; as, alluvial soil, mud, accumulations, deposits. [1913 Webster]
OXFORD DICTIONARY
alluvial, adj. & n.
--adj. of or relating to alluvium.
--n. alluvium, esp. containing a precious metal.
--adj. of or relating to alluvium.
--n. alluvium, esp. containing a precious metal.
ROGET THESAURUS
alluvial
Horizontality
N horizontality, flatness, level, plane, stratum, dead level, dead flat, level plane, recumbency, lying down, reclination, decumbence, decumbency, discumbency, proneness, accubation, supination, resupination, prostration, azimuth, plain, floor, platform, bowling green, cricket ground, croquet ground, croquet lawn, billiard table, terrace, estrade, esplanade, parterre, table land, plateau, ledge, butte, mesa (plain), level, spirit level, horizontal, level, even, plane, flat, flat as a billiard table, flat as a bowling green, alluvial, calm, calm as a mill pond, smooth, smooth as glass, recumbent, decumbent, procumbent, accumbent, lying, prone, supine, couchant, jacent, prostrate, recubant, horizontally, on one's back, on all fours, on its beam ends.Land
N land, earth, ground, dry land, terra firma, continent, mainland, peninsula, chersonese, delta, tongue of land, neck of land, isthmus, oasis, promontory, highland, coast, shore, scar, strand, beach, playa, bank, lea, seaboard, seaside, seabank, seacoast, seabeach, ironbound coast, loom of the land, derelict, innings, alluvium, alluvion, ancon, riverbank, river bank, levee, soil, glebe, clay, loam, marl, cledge, chalk, gravel, mold, subsoil, clod, clot, rock, crag, acres, real estate, landsman, earthy, continental, midland, coastal, littoral, riparian, alluvial, terrene, landed, predial, territorial, geophilous, ripicolous, ashore, on shore, on land.Plain
N plain, table-land, face of the country, open country, champaign country, basin, downs, waste, weary waste, desert, wild, steppe, pampas, savanna, prairie, heath, common, wold, veldt, moor, moorland, bush, plateau, campagna, alkali flat, llano, mesa, mesilla, playa, shaking prairie, trembling prairie, vega, meadow, mead, haugh, pasturage, park, field, lawn, green, plat, plot, grassplat, greensward, sward, turf, sod, heather, lea, ley, lay, grounds, maidan, agostadero, champaign, alluvial, campestral, campestrial, campestrian, campestrine.For further exploring for "alluvial" in Webster Dictionary Online