Meaning & use
aquitard
Last updated
A layer of rock or sediment that restricts, but does not completely block, the flow of groundwater.
See it in a sentence
The clay aquitard slowed the spread of contaminants into the aquifer below.
Geologists mapped the aquitard to predict how pollutants might migrate underground.
A note on using this word
The name combines 'aqua' (water) with 'tardus' (slow), describing how it retards rather than stops water flow.
Words with an opposite meaning
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