American Heritage Dictionary
(1)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
Although acetone is aromatic and flammable at 56. 2°C, it is very colorful.— CreationWiki - Recent changes [en]
When a base removes one proton from either of the non-carbonyl carbons of acetone, a carbanion is produced in which one of the carbon has a negative charge.— Citizendium, the Citizens' Compendium - Recent changes [en]
Unfortunately our reseach has indicated that, although acetone is an excellent fuel component, it is voraciously corrosive to plastics, elastomers, composites and aluminum.

Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word several times a year.