The Collaborative International Dictionary
Hydrogenated
Hydrogenate \Hy"dro*gen*ate\, v. t. [imp. & p. p. Hydrogenated; p. pr. & vb. n. Hydrogenating.] (Chem.) To hydrogenize.
Wiktionary
hydrogenated
that has been treated, or reacted with hydrogen; especially describing a saturated fat so obtained from an unsaturated fat v
(en-past of: hydrogenate)
WordNet
hydrogenated
adj. combined with hydrogen; especially of an unsaturated fatty acid combined with hydrogen