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The Collaborative International Dictionary
Cinnamone

Cinnamone \Cin"na*mone\, n. [Cinnamic + -one.] A yellow crystalline substance, (C6H5.C2H2)2CO, the ketone of cinnamic acid.

Wiktionary
cinnamone

n. (context organic compound English) A yellow crystalline substance, (C6H5.C2H2)2CO, the ketone of cinnamic acid.