Definitions

from The Century Dictionary.

  • noun A colorless crystalline substance, C8H7ON, formed by reducing isatin or the anilide of orthonitrophenylacetic acid. Also called indolinone.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Chem.) A white crystalline nitrogenous substance (C8H7NO) of the indol group, obtained by the reduction of dioxindol. It is a so-called lactam compound.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Archaic form of oxindole.

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