natural depression

Definitions of natural depression
1

n a sunken or depressed geological formation

Synonyms:
depression
Antonyms:
elevation, natural elevation
a raised or elevated geological formation
Examples:
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Nemea
a valley in southeastern Greece where the Nemean Games were held
Lowlands of Scotland
the southern part of Scotland that is not mountainous
Aristarchus
a bright crater on the Moon
Atacama Trench
a depression in the floor of the Pacific Ocean off the coast of Chile
Bougainville Trench
a depression in the floor of the Pacific Ocean between New Guinea and the Solomon Islands
Cataract Canyon
a tributary of the Grand Canyon
Copernicus
a conspicuous crater on the Moon
Grand Canyon
the enormous gorge of the Colorado River in northern Arizona
Great Rift Valley
( geology) a depression in southwestern Asia and eastern Africa; extends from the valley of the Jordan River to Mozambique; marked by geological faults
Japan Trench
a depression in the floor of the Pacific Ocean to the northeast of Japan that reaches depths of 30,000 feet
Loire Valley
the valley of the Loire River where many French wines originated
Nares Deep
a depression in the floor of the Atlantic Ocean to the north of Haiti and Puerto Rico
Olduvai Gorge
a gorge in northeastern Tanzania where anthropologists have found some of the earliest human remains
San Fernando Valley
a fertile valley in southern California to the north of Los Angeles; includes many residential communities
San Joaquin Valley
a vast valley in central California known for its rich farmland
Shenandoah Valley
a large valley between the Allegheny Mountains and the Blue Ridge Mountains in northern Virginia; site of numerous battles during the American Civil War
Types:
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basin
a natural depression in the surface of the land often with a lake at the bottom of it
bed, bottom
a depression forming the ground under a body of water
crater
a bowl-shaped depression formed by the impact of a meteorite or bomb
hole, hollow
a depression hollowed out of solid matter
lowland
low level country
sink, sinkhole, swallow hole
a depression in the ground communicating with a subterranean passage (especially in limestone) and formed by solution or by collapse of a cavern roof
deep, oceanic abyss, trench
a long steep-sided depression in the ocean floor
trough
a narrow depression (as in the earth or between ocean waves or in the ocean bed)
vale, valley
a long depression in the surface of the land that usually contains a river
burrow, tunnel
a hole made by an animal, usually for shelter
cirque, corrie, cwm
a steep-walled semicircular basin in a mountain; may contain a lake
collector
a crater that has collected cosmic material hitting the earth
dale
an open river valley (in a hilly area)
glen
a narrow secluded valley (in the mountains)
gopher hole
a hole in the ground made by gophers
gully
deep ditch cut by running water (especially after a prolonged downpour)
holler, hollow
a small valley between mountains
kettle, kettle hole
(geology) a hollow (typically filled by a lake) that results from the melting of a mass of ice trapped in glacial deposits
lake bed, lake bottom
the bottom of a lake
landfill
a low area that has been filled in
lunar crater
a crater on the Earth's Moon
nullah
a ravine or gully in southern Asia
Davy Jones, Davy Jones's locker, ocean bottom, ocean floor, sea bottom, sea floor, seabed
the bottom of a sea or ocean
cavity, pit
a sizeable hole (usually in the ground)
chuckhole, pothole
a pit or hole produced by wear or weathering (especially in a road surface)
rabbit burrow, rabbit hole
a hole in the ground as a nest made by wild rabbits
ravine
a deep narrow steep-sided valley (especially one formed by running water)
rift valley
a valley with steep sides; formed by a rift in the earth's crust
river bottom, riverbed
a channel occupied (or formerly occupied) by a river
saltpan
a shallow basin in a desert region; contains salt and gypsum that was deposited by an evaporated salt lake
creek bed, streambed
a channel occupied (or formerly occupied) by a stream
swale
a low area (especially a marshy area between ridges)
tidal basin
a basin that is full of water at high tide
wormhole
hole made by a burrowing worm
Type of:
formation, geological formation
(geology) the geological features of the earth

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