verb (used with object), hy·dro·gen·at·ed, hy·dro·gen·at·ing.
to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).
Related formshy·dro·gen·a·tion, noun
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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British Dictionary definitions for hydrogenated
hydrogenize or hydrogenise
Derived Formshydrogenation, hydrogenization or hydrogenisation, nounhydrogenator, noun
to undergo or cause to undergo a reaction with hydrogento hydrogenate ethylene
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for hydrogenated
1809, from hydrogen + -ate (2). Related: Hydrogenated; hydrogenation.
Online Etymology Dictionary, © 2010 Douglas Harper
To treat or combine chemically an unsaturated compound with hydrogen. Liquid vegetable oils are often hydrogenated to turn them into solids.
To turn coal into oil by combining its carbon with hydrogen to form hydrocarbons.
The American Heritage® Science Dictionary
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