- a circular container with a greater width than depth, becoming smaller toward the bottom, used chiefly to hold water or other liquid, especially for washing.
- any container of similar shape, as the pan of a balance.
- the quantity held by such a container: We need another basin of water to dilute the mixture.
- a natural or artificial hollow place containing water.
- a partially enclosed, sheltered area along a shore, often partly man-made or dredged to a greater depth, where boats may be moored: a yacht basin.
- Geology. an area in which the strata dip from the margins toward a common center.
- Physical Geography.
- a hollow or depression in the earth's surface, wholly or partly surrounded by higher land: river basin.
- drainage basin.
- Botany. the depression in an apple, pear, or other pome at the end opposite the stem.
Origin of basin
- a round container open and wide at the top with sides sloping inwards towards the bottom or base, esp one in which liquids are mixed or stored
- Also called: basinful the amount a basin will hold
- a washbasin or sink
- any partially enclosed or sheltered area where vessels may be moored or docked
- the catchment area of a particular river and its tributaries or of a lake or sea
- a depression in the earth's surface
- geology a part of the earth's surface consisting of rock strata that slope down to a common centre
Word Origin and History for subbasin
"large shallow vessel or dish," c.1200, from Old French bacin (11c., Modern French bassin), from Vulgar Latin *baccinum, from *bacca "water vessel," perhaps originally Gaulish. Meaning "large-scale artificial water-holding landscape feature" is from 1712. Geological sense of "tract of country drained by one river or draining into one sea" is from 1830.
- A region drained by a river and its tributaries.
- A low-lying area on the Earth's surface in which thick layers of sediment have accumulated. Some basins are bowl-shaped while others are elongate. Basins form through tectonic processes, especially in fault-bordered intermontane areas or in areas where the Earth's crust has warped downwards. They are often a source of valuable oil.
- An artificially enclosed area of a river or harbor designed so that the water level remains unaffected by tidal changes.