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Webster 1913 Edition

(k?-t?r′n?n or -n?n)

Noun.

[F., fr.

narcotine

, by transposition of letters.]

(Chem.)

A white, crystalline substance,

C12H13NO3

, obtained as a product of the decomposition of narcotine. It has weak basic properties, and is usually regarded as an alkaloid.

cotarnine ‎(uncountable)

(organic chemistry) A white crystalline substance, C₁₂H₁₃NO₃, obtained from decomposition of narcotine.