hyperarid
adjective
hy·per·ar·id
ˌhī-pər-ˈa-rəd 
-ˈer-əd
variants
or hyper-arid
: extremely arid
hyperarid desert regions
hyperarid climates
… Antarctica's hyperarid, cold-desert conditions make it this planet's closest analogue to Mars …—
Jean Hennelly Keith
Jean Hennelly KeithExamples of hyperarid in a Sentence
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Mean annual precipitation in its hyperarid core is 0.004 inches.
—Maggie Shipstead Anthony Cotsifas, New York Times, 10 May 2023
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Maggie Shipstead Anthony Cotsifas, New York Times, 10 May 2023
Cite this Entry
“Hyperarid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperarid. Accessed 25 Jul. 2025.
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