Definition of pyrone in US English:

pyrone

noun

Chemistry
  • Each of two unsaturated, heterocyclic ketones having the formula C₅H₄O₂, specifically γ-pyrone.

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From pyro- + -one, after German Pyron.

Pronunciation

pyrone

/ˈpʌɪrəʊn/