treated as singular A fine yellow powdered form of sulphur produced by sublimation.
Example sentencesExamples
- Cut off and burn the diseased stems, lift the bulbs, place them in a large paper bag containing flowers of sulphur, give a good shaking to work the sulphur well into the scales and then replant in a fresh site.
- Flowers of sulphur is the sublimed substance from purification by distillation.
- No one at the garden centers seem to have flowers of sulphur.