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English definition of “geyser”

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geyser

noun [C] uk   /ˈɡiː.zər/ us    /ˈɡaɪ.zɚ/
a hole in the ground from which hot water and steam are sent out UK especially in the past, a device that uses gas to provide a house with hot water
(Definition of geyser from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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