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phreatic

 - 2 dictionary results

phre⋅at⋅ic

  [free-at-ik]
Use phreatic in a Sentence
–adjective Geology.
1. noting or pertaining to ground water.
2. noting or pertaining to explosive volcanic activity involving steam derived from ground water: a phreatic explosion.
Origin:
1890–95; < Gk phreat- (s. of phréar) artificial well + -ic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To phreatic
phre·at·ic   (frē-āt'ĭk)   
adj.  Of or relating to ground water.

[From Greek phrear, phreat-, well, spring; see bhreu- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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