aggradational

aggrade

[uh-greyd]
verb (used with object), aggraded, aggrading. Physical Geography.
to raise the grade or level of (a river valley, a stream bed, etc.) by depositing detritus, sediment, or the like.
Compare degrade.


Origin:
1895–1900; ag- + grade

aggradation [ag-ruh-dey-shuhn] , noun
aggradational, adjective
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World English Dictionary
aggrade (əˈɡreɪd)
 
vb
(tr) Compare degrade to build up the level of (any land surface) by the deposition of sediment
 
aggradation
 
n

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