hy·​dro·​sphere ˈhī-drō-ˌsfir How to pronounce hydrosphere (audio)
: the aqueous vapor of the atmosphere
broadly : the aqueous envelope of the earth including bodies of water and aqueous vapor in the atmosphere
hydrospheric adjective

Examples of hydrosphere in a Sentence

Recent Examples on the Web But as this intentional global warming is induced on Mars, the planet will warm and its ancient hydrosphere will become reactivated, notes Zubrin. Bruce Dorminey, Forbes, 18 Feb. 2024 There is no active hydrosphere. Jamie McIntyre, Washington Examiner, 15 Oct. 2020 Listening for other heartbeats in the hydrosphere. David Gilbert, The New Yorker, 17 Aug. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hydrosphere.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


borrowed from German Hydrosphäre, from hydro- hydro- + -sphäre -sphere

Note: Hydrosphäre was introduced by the Austrian geologist Eduard Suess (1831-1914) in Die Entstehung der Alpen (Vienna, 1875), p. 158.

First Known Use

1887, in the meaning defined above

Time Traveler
The first known use of hydrosphere was in 1887

Dictionary Entries Near hydrosphere

Cite this Entry

“Hydrosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrosphere. Accessed 27 May. 2024.

Kids Definition


hy·​dro·​sphere ˈhī-drə-ˌsfi(ə)r How to pronounce hydrosphere (audio)
: the surface waters of the earth and the water vapor in the atmosphere

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