hydrospheren.
/ˈhʌɪdrəʊsfɪə/ (a) The waters of the earth's surface collectively. (b) By some used to designate the moisture contained in the air enveloping the earth's surface ( Cent. Dict.).
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the world > the earth > water > [noun] > of earth's surface collectively
hydrosphere1887
1887 H. J. Kinder in Times 6 Sept. 11/3 A descriptive analysis of the Earth's surface, including in that term the atmosphere, the hydrosphere, the form of the lithosphere and the material of its surface.
1889 Nature 21 Mar. 490 The sea, or hydrosphere of the earth.
1889 Nature 21 Mar. 491 Swedenborg's ancient idea that a change in the rotation of the earth caused a change in the form of the hydrosphere.
This entry has not yet been fully updated (first published 1899; most recently modified version published online June 2018).
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n.1887