Definitions for: Hydrogenation

[n] a chemical process that adds hydrogen atoms to an unsaturated oil; "food producers use hydrogenation to keep fat from becoming rancid"

Webster (1913) Definition: Hy`dro*gen*a"tion, n. (Chem.)
The act of combining with hydrogen, or the state of being so
combined.

See Also: chemical action, chemical change, chemical process