356. Rivers

See also 234. LAKES ; 360. SEA ; 414. WATER .

alluvion

1. the gradual depositing by a river of earth and other material on the banks.

2. also called alluvium . the material deposited.

fluviation

1. the formation of rivers.

2. a river system.

lutulence

Obsolete, the state or condition of being muddy or turbid. —lutulent, adj.

nilometer

an instrument used for measuring the increase in the level of the River Nile during its flood period, consisting of a water chamber containing a graduated pillar. Also niloscope .

potamology

the study of rivers. —potamologist, n. —potamological, adj.

potamophobia

a morbid fear of rivers.

riparian

a dweller on the bank of a river. —riparian, adj.