Definitions
from The Century Dictionary.
- In geology, more or less filled with detritus by a stream: said of a valley, basin, or bay.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- verb Simple past tense and past participle of
aggrade .
Etymologies
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Examples
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The lower reaches of most streams have aggraded; here, enough gravel has accumulated to promote subsurface flow, except during and immediately after rainfall.
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Unlike visual recollection, aggraded by a million freeze-frames a day, touch was the sense of darkness.
The Big Scam Paul Lindsay 2005
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Valleys aggraded with fine waste form well-nigh level plains over which streams wind from side to side of a direct course in symmetric bends known as meanders, from the name of a winding river of Asia Minor.
The Elements of Geology William Harmon Norton 1900
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In this way each part of the fan is aggraded and its symmetric form is preserved.
The Elements of Geology William Harmon Norton 1900
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We may conceive, then, of the Connecticut valley and the larger trough to the southwest as basins gradually sinking at a rate perhaps no faster than that of the New Jersey coast to-day, and as gradually aggraded by streams from the neighboring uplands.
The Elements of Geology William Harmon Norton 1900
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Valley trains are deposits of stratified drift with which river valleys have been aggraded.
The Elements of Geology William Harmon Norton 1900
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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.
The Elements of Geology William Harmon Norton 1900
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Several debris flows have aggraded the debris fan, including a large one that deposited the prominent levee at right between 1940 and 1965.
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Several debris flows have aggraded the debris fan, including a large one that deposited the prominent levee at right between 1940 and 1965.
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Several debris flows have aggraded the debris fan, including a large one that deposited the prominent levee at right between 1940 and 1965.
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