pothole

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pothole,

in geology, cylindrical pit formed in the rocky channel of a turbulent stream. It is formed and enlarged by the abrading action of pebbles and cobbles that are carried by eddies, or circular water currents that move against the main current of a stream. Potholes are most commonly found at the bottoms of eddies in rivers and in plunge pools below cataracts; sometimes potholes in a rock outcrop indicate the former site of a rapid or cataract. Potholes are often found in formerly glaciated regions where whirling columns of glacial meltwater sank well-like holes, or moulins, through the ice. Notable potholes are found in Ausable Chasm, N.Y., and Shelburne Falls, Mass. Potholes also refer to holes formed in human-made materials found in roads that are effected by natural freeze-thaw cycles or moisture (see weatheringweathering,
collective term for the processes by which rock at or near the earth's surface is disintegrated and decomposed by the action of atmospheric agents, water, and living things. Some of these processes are mechanical, e.g.
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pothole

[′pät‚hōl]
(civil engineering)
A pot-shaped hole in a pavement surface.
(geology)
A shaftlike cave opening upward to the surface.
Any bowl-shaped, cylindrical, or circular hole formed by the grinding action of a stone in the rocky bed of a river or stream. Also known as churn hole; colk; eddy mill; evorsion hollow; kettle; pot.
A vertical, or nearly vertical shaft in limestone. Also known as aven; cenote.
A small depression with steep sides in a coastal marsh; contains water at or below low-tide level. Also known as rotten spot.
(hydrology)

pothole

1. Geography
a. a deep hole in limestone areas resulting from action by running water
b. a circular hole in the bed of a river produced by abrasion
2. a deep hole, esp one produced in a road surface by wear or weathering
References in periodicals archive ?
Out of the 832 pot holes, the region's six council's have only fixed around 119, website cycling website Fill That Hole claims.
North Tyneside Council's cabinet was told the number of pot holes could increase further as the damage to roads continues to be reviewed.
LOCAL councils blamed bad weather for pot holes in our roads (pictured left) but roads in Cleveland have been in a terrible state for years.
I was running in the dark with a head torch on and I fell down a pot hole and sprained my ankle," he said.
Pot holes in the road are described as "every motorist's nightmare", and things are just getting worse - says car breakdown service Autonational Rescue.
His idea that 'competent' drivers would try their best to avoid pot holes beggars belief.
Pc Dulson added: "They had both fallen down a large hole but one of the boys had also fallen down a smaller pot hole and he couldn't get out.
It cleans, fills and covers the pot hole and can be completed in one visit.
Has Mel B fallen down a pot hole, Jordan's boobs burst or Sir Alex Ferguson turned into a beetroot?
We anticipate delivering our first product, a high performance permanent pot hole patch, by late fall of this year.
Tenders are invited for urgent pot hole filling using pot hole filling machine along various road under city road section no 11
The hole appeared overnight and it was recognised that it's not just an ordinary pot hole that can be filled with tarmac.