aggrade

American  

[uh-grayd] / əˈgreɪd /

verb (used with object)

Physical Geography.

aggraded, aggrading

1. 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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aggrade British  

/ əˈɡreɪd /

verb

1. (tr) to build up the level of (any land surface) by the deposition of sediment Compare degrade

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Other Word Forms

• aggradation
  noun
• aggradational
  adjective

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Etymology

Origin of aggrade

First recorded in 1895–1900; ag- + grade

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Example Sentences

See Examples For:

aggrade aggraded aggrading

So they all aggrade, an' wint home at wanst to get ready fur the shports.

From Irish Wonders by D. R. (David Russell) McAnally

So it was settled, an' as Dooley didn't have the money, the widdys aggrade to take their pay some other way.

From Irish Wonders by D. R. (David Russell) McAnally

After building this sheet of waste the streams ceased to aggrade and began the work of destruction.

From The Elements of Geology by William Harmon Norton

But he wanted her, an' his father an' O'Moore put their heads together over a glass an' aggrade that the young wans 'ud be married.

From Irish Wonders by D. R. (David Russell) McAnally

So she aggrade to do her best, an' gev her a little bag to carry wid 'erbs in it, an' writ some words on two bits av paper an' the same in Latin.

From Irish Wonders by D. R. (David Russell) McAnally

The aggraded channels then came to stand out as ridges.

From The Geography of the Region about Devils Lake and the Dalles of the Wisconsin by Wallace W. Atwood

The S.E. corner of Arizona is a region of greatly eroded ranges and gentle aggraded valleys.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5 "Arculf" to "Armour, Philip" by Various

Valley trains are deposits of stratified drift with which river valleys have been aggraded.

From The Elements of Geology by William Harmon Norton

In this way each part of the fan is aggraded and its symmetric form is preserved.

From The Elements of Geology by William Harmon Norton

Since glacial streams are well loaded with waste due to vigorous ice erosion, the valley in front of the glacier is commonly aggraded to a broad, flat floor.

From The Elements of Geology by William Harmon Norton

However, I believe students of agriculture will agree with me that deforestation, increased erosion, and aggrading gravel banks probably drove the folk out of Saylla.

From Inca Land Explorations in the Highlands of Peru by Hiram Bingham

Flood-plain deposits of great thickness may be built by aggrading rivers even in valleys whose rock floors have never been thus widened.

From The Elements of Geology by William Harmon Norton

While aggrading streams thus tend to shift their channels, degrading streams, on the contrary, become more and more deeply intrenched in their valleys.

From The Elements of Geology by William Harmon Norton

Results of Glacial Action.—A glacier is a degrading and an aggrading agent.

From Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 1 "Gichtel, Johann" to "Glory" by Various

In either case the stream continues aggrading or degrading until a new gradient is found where the velocity is just sufficient to move the load, and here again it reaches grade.

From The Elements of Geology by William Harmon Norton

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