Definition of Rouna. Meaning of Rouna. Synonyms of Rouna
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Definition of Rouna
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Dipterix formerly Coumarouna odorata Coumarin Cou"ma*rin (k[=oo]"m[.a]*r[i^]n), n. [F., fr.
coumarou, a tree of Guiana.] (Chem.)
The concrete essence of the tonka bean, the fruit of
Dipterix (formerly Coumarouna) odorata and consisting
essentially of coumarin proper, which is a white crystalline
substance, C9H6O2, of vanilla-like odor, regarded as an
anhydride of coumaric acid, and used in flavoring. Coumarin
in also made artificially.
