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| any geological formation containing or conducting ground water, esp. one that supplies the water for wells, springs, etc. |
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artesian formation [image] |
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evapotranspiration [image] |
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| the process of transferring moisture from the earth to the atmosphere by evaporation of water and transpiration from plants. |
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| A natural hot spring that intermittently ejects a column of water and steam into the air. |
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- A natural hot spring that intermittently ejects a column of water and steam into the air.
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| Chemistry, Geology. (of porous substances, rocks, etc.) not permitting the passage of a fluid through the pores, interstices, etc. |
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| Also called magnetic permeability. Electricity. a measure of the change in magnetic induction produced when a magnetic material replaces air, expressed as a coefficient or a set of coefficients that multiply the components of magnetic intensity to give the components of magnetic induction |
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| Geology, Engineering. the ratio, expressed as a percentage, of the volume of the pores or interstices of a substance, as a rock or rock stratum, to the total volume of the mass |
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| Geology. the processes by which ground water is absorbed into the zone of saturation. |
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| the natural sequence through which water passes into the atmosphere as water vapor, precipitates to earth in liquid or solid form, and ultimately returns to the atmosphere through evaporation. |
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difference in water colour, |
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