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phreatic

[ free-at-ik ]

adjective

, Geology.
  1. noting or pertaining to groundwater.
  2. noting or pertaining to explosive volcanic activity involving steam derived from groundwater:

    a phreatic explosion.



phreatic

/ frɪˈætɪk /

adjective

  1. geography of or relating to ground water occurring below the water table Compare vadose
“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


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Word History and Origins

Origin of phreatic1

First recorded in 1890–95; from Greek phreat- (stem of phréar ) “artificial well” + -ic
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Word History and Origins

Origin of phreatic1

C19: from Greek phrear a well

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phreakingphreatic zone