Definitions

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

  • noun organic chemistry A heterocyclic compound or ring.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a ring of atoms of more than one kind; especially a ring of carbon atoms containing at least one atom that is not carbon
  • noun a compound containing a heterocyclic ring

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

hetero- +‎ cycle

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