heterocyclic

/ˌhɛtəroʊˈsaɪklɪk/
adjective
  1. Relating to a chemical compound whose molecular structure includes a ring of atoms containing at least two different elements (usually carbon plus another element like nitrogen, oxygen, or sulfur).
    • Many vitamins, such as B12, contain heterocyclic rings in their structure.
    • The chemist studied the properties of a new heterocyclic compound for use in medicine.
    • Caffeine is a well-known heterocyclic molecule found in coffee and tea.
noun
  1. A chemical compound that has a ring structure containing atoms of at least two different elements.
    • Pyridine is a common heterocyclic used in the production of pesticides.
    • Students learned to name heterocyclics in their organic chemistry class.
    • The lab synthesized several heterocyclics to test their antibacterial activity.
What does "heterocyclic" mean? | whatsthatwordmean | whatsthatwordmean