phreatic
1
9.9
- adjective
- /frɪˈætɪk/
- Specialized
- During the summer, we explored the phreatic systems that supply water to nearby wells.
Examples
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The study focused on the phreatic layer, where groundwater is stored beneath the surface.
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There have been at least two phreatic explosions in Hrunagil (?) today, where the lava first flowed.
Blog text (25) -
Nuclear phreatic zone, right.
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Right now I'm more interested in Tongariro; after the phreatic blast a few months ago, things seem to have gone into slow motion.
Blog text (34) -
Its initial explosion was followed by six months (Sept) to three years of increased steaming and small phreatic eruptions.
Blog text (4) -
I think I caught the tail end of what you saw (lower Vodafone camera, above the pyramid-shaped, flat-topped mountain, right?) and it looked very much like all the previous phreatic explosions when a lava flow interacts with water or snow.
Blog text (25) -
Understanding the phreatic conditions is crucial for predicting regional water availability.
Synonyms
Rock or soil that holds water underground and lets it flow through
Surface Forms
Morphology
phreatic = phreat + ic
The combining form 'phreat-' is not a productive standalone English word and the meaning 'groundwater' is specialized, so an average learner cannot derive the sense from the components.
Etymology
The word phreatic comes from the Greek root phrear, meaning 'well' or 'spring', so you can think of it as about water under the ground. That's why phreatic describes groundwater or parts of the ground full of water, and why a 'phreatic eruption' happens when that underground water meets hot rock.