from The Century Dictionary.

  • noun The name of a class of organic compounds containing the group -C(OH):N-. It is a tautomeric and, occasionally, isomeric form of the lactam radical.

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

  • noun (Chem.) One of a series of anhydrides resembling the lactams, but of an imido type. Cf. lactam.

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

  • noun organic chemistry Any of a class of cyclic hydroxy-imides (enols) that are tautomeric with the lactams.


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