单词 | water table |
释义 | water tableor wa·ter·ta·bleSEE SYNONYMS FOR water table ON THESAURUS.COM nounthe planar, underground surface beneath which earth materials, as soil or rock, are saturated with water. Architecture. a projecting stringcourse or similar structural member placed so as to divert rainwater from a building. Origin of water tableA late Middle English word dating back to 1400–50 Words nearby water tablewater starwort, water stick insect, water strider, water supply, water system, water table, water target, water taxi, water thrush, water tiger, watertight Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for water tableBritish Dictionary definitions for water tablewater table nounthe surface of the water-saturated part of the ground, usually following approximately the contours of the overlying land surface an offset or string course that has a moulding designed to throw rainwater clear of the wall below Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for water tablewater table The depth (measured from the surface of the Earth) at which underground water is first encountered. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Scientific definitions for water tablewater table The upper surface of an area filled with groundwater, separating the zone of aeration (the subsurface region of soil and rocks in which the pores are filled with air and usually some water) from the zone of saturation (the subsurface region in which the pores are filled only with water). Water tables rise and fall with seasonal moisture, water absorption by vegetation, and the withdrawal of groundwater from wells, among other factors. The water table is not flat but has peaks and valleys that generally conform to the overlying land surface. Compare potentiometric surface. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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