Hypertext Webster Gateway: "ketone"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Ketone \Ke"tone\ (k[=e]"t[=o]n), n. [Cf. {Acetone}.] (Chem.)
One of a large class of organic substances resembling the
aldehydes, obtained by the distillation of certain salts of
organic acids and consisting of carbonyl ({CO}) united with
two hydrocarbon radicals. In general the ketones are
colorless volatile liquids having a pungent ethereal odor.
Note: The ketones are named by adding the suffix-one to the
stems of the organic acids from which they are
respectively derived; thus, acetic acid gives acetone;
butyric acid, butyrone, etc.
From WordNet (r) 1.7 (wn)
ketone
n : any of a class of organic compounds having a carbonyl group
linked to a carbon atom in each of two hydrocarbon
radicals
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