hydrogenousadj.1
/hʌɪˈdrɒdʒənəs/ Chemistry.
Of, pertaining to, or consisting of hydrogen. †hydrogenous gas, an early name for hydrogen; †carbonated hydrogenous gas = carburetted hydrogen; †hydrogenous sulphurated gas = sulphuretted hydrogen.
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the world > matter > chemistry > elements and compounds > hydrogen > [adjective]
hydrogenous1791
hydrogenic1866
1791 W. Hamilton tr. C.-L. Berthollet Elements Art of Dyeing I. i. i. v. 81 Dr. Priestley obtained inflammable air, or hydrogenous gas.
1802 Med. & Physical Jrnl. 8 522 That an animal died immediately on inspiring hydrogenous sulphurated gas.
1806 W. Henry Epitome Chem. (ed. 4) ii. i. 308 Sulphuretted hydrogenous waters.
1874 W. R. Grove On Correlation Physical Forces (ed. 6) 349 The differences between the hydrogenous and the other gases.
1878 S. Newcomb Pop. Astron. iii. ii. 267 The structure of the hydrogenous protuberances.
This entry has not yet been fully updated (first published 1899; most recently modified version published online September 2018).
hydrogenousadj.2
/hʌɪˈdrɒdʒɪnəs/ Geology.
Of a mineral, deposit, etc.: formed by the (chemical) action of water.
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the world > the earth > structure of the earth > structural features > deposited by water, ice, or wind > [adjective] > by water or ice
Neptunian1774
aqueous1802
diluvial1816
neptunean1843
neptunic1851
torrential1861
fluviolacustrine1864
hydrogenous1889
aqueo-glacial1892
fluvio-glacial1894
solution1894
paralic1914
1889 in Cent. Dict.
1954 Jrnl. Geol. (Chicago) 62 260/2 The ratio in manganese nodules, which are presumed to be almost entirely hydrogenous, averages 150, whereas in igneous rocks the ratio of 20 is reported.
1981 E. Bonatti in C. Emiliani Oceanic Lithosphere xvii. 641 Hydrogenous deposits..are formed on the sea floor by precipitation of metals derived mainly from seawater.
Derivatives
hyˈdrogenously adv.
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the world > the earth > structure of the earth > structural features > deposited by water, ice, or wind > [adverb] > by water
hydrogenously1974
1974 Nature 11 Oct. 473/2 Some metals may be released into the water column at mid-ocean ridges by hydrothermal circulation and others may be hydrogenously deposited in the Bauer Deep.
This entry has not yet been fully updated (first published 1993; most recently modified version published online June 2018).
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