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[pi-roh-li-deen, -din, -rol-i-] /pɪˈroʊ lɪˌdin, -dɪn, -ˈrɒl ɪ-/

noun, Chemistry.
a colorless, water-soluble, unpleasant smelling, poisonous liquid, C 4 H 9 N, from which proline and certain alkaloids are derived, prepared by reducing : used chiefly in organic synthesis.
an almost colourless liquid occurring in tobacco leaves and made commercially by hydrogenating pyrrole. It is a strongly alkaline heterocyclic base with molecules that contain a ring of four carbon atoms and one nitrogen atom. Formula: C4H9N

pyrrolidine pyr·rol·i·dine (pĭ-rŏl’ĭ-dēn’)
A nearly colorless liquid pyrrole derivative of pyrrole having an ammonialike odor; it is the basis of proline and hydroxyproline.


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