aggrade
[ uh-greyd ]
/ əˈgreɪd /
verb (used with object), ag·grad·ed, ag·grad·ing. 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.
OTHER WORDS FROM aggrade
ag·gra·da·tion [ag-ruh-dey-shuh n] /ˌæg rəˈdeɪ ʃən/, noun ag·gra·da·tion·al, adjectiveWords nearby aggrade
Example sentences from the Web for aggrade
Its deposits tend to aggrade (build up) the flat which its meanderings develop.
The Geography of the Region about Devils Lake and the Dalles of the Wisconsin |Rollin D. SalisburyIn this way they aggrade each portion of it in turn by means of their shifting channels.
The Elements of Geology |William Harmon Norton
British Dictionary definitions for aggrade
aggrade
/ (əˈɡreɪd) /
verb
(tr)
to build up the level of (any land surface) by the deposition of sediment
Compare degrade (def. 4)