- 1. The rate at which a soil or rock under specified conditions absorbs falling rain, melting snow, or surface water expressed in depth of water per unit time .2. A characteristic describing the maximum rate at which water can enter the soil or rock, under specified conditions, including the presence of an excess of water. It has the dimensions of velocity .
A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. Courtesy of the author & The Karst Waters Institute. 2002.
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infiltration rate — the rate at which water moves into the soil. Dependent on: amount of water already in the soil, especially near the surface. Very wet and very dry soils have the slowest rates of infiltration. soil texture which determines the size of pore… … Geography glossary
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infiltration capacity — the maximum rate at which a soil in a given condition will absorb water. Also called infiltration rate. [1930 35] * * * … Universalium
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infiltration capacity — The maximum rate at which a soil or rock is capable of absorbing water or limiting infiltration  … Lexicon of Cave and Karst Terminology
infiltration index — The average rate of infiltration throughout a given rain storm  … Lexicon of Cave and Karst Terminology