Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
Pertaining to, or obtained from, the poppy or opium; specif.(Chem.), designating an acid related to aconitic acid, found in opiumand extracted as a white crystalline substance.