aggrade

[ uh-greyd ]

/ əˈgreɪd /

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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.

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Compare degrade.

Origin of aggrade

First recorded in 1895–1900; ag- + grade

OTHER WORDS FROM aggrade

ag·gra·da·tion

[ag-ruh-dey-shuhn], /ˌæg rəˈdeɪ ʃən/, nounag·gra·da·tion·al, adjective

Words nearby aggrade

agglutinative, agglutinin, agglutinogen, agglutinophilic, agglutogen, aggrade, aggrandize, aggrandizement, aggravate, aggravated, aggravated trespass

How to use aggrade in a sentence

In this way they aggrade each portion of it in turn by means of their shifting channels.
The Elements of Geology|William Harmon Norton
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. Salisbury

British Dictionary definitions for aggrade

aggrade

/ (əˈɡreɪd) /

verb

(tr) to build up the level of (any land surface) by the deposition of sedimentCompare degrade (def. 4)

Derived forms of aggrade

aggradation (ˌæɡrəˈdeɪʃən), noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012