from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of three isomeric monounsaturated heterocycles having a five-membered ring and one nitrogen atom C4H7N; any derivative of these compounds

from the GNU version of the Collaborative International Dictionary of English

  • n. A nitrogenous base, C4H7N, obtained as a colorless liquid by the reduction of pyrrole.

from The Century Dictionary and Cyclopedia

  • n. A liquid base, , made by reducing pyrrol with zinc-dust and acetic acid. It boils at 90–91° C. Also called dihydropyrrol.


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