Definition of flowers of zinc in US English:

flowers of zinc

plural noun

  • treated as singular Finely powdered zinc oxide.

    • ‘When fused in open vessels, it absorbs oxygen, and forms the white oxide, called flowers of zinc.’
    • ‘The apparent sublimation of the common flowers of zinc at the instant of their production, though totally unsublimable afterwards, is certainly likewise but a deceptious appearance.’