Dictionaryba•sinPronunciation: (bā'sun), [key] —n. 1. a circular container with a greater width than depth, becoming smaller toward the bottom, used chiefly to hold water or other liquid, esp. for washing. 2. any container of similar shape, as the pan of a balance. 3. the quantity held by such a container: We need another basin of water to dilute the mixture. 4. a natural or artificial hollow place containing water. 5. 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. 6. Geol.an area in which the strata dip from the margins toward a common center. 7. Physical Geog. a. a hollow or depression in the earth's surface, wholly or partly surrounded by higher land: river basin. b. See drainage basin. 8. Bot.the depression in an apple, pear, or other pome at the end opposite the stem. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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