SUL'PHORE SUL'PHUR, noun [Latin] A simple combustible mineral substance, of a yellow color, brittle, insoluble in water, but fusible by heat. It is called also brimstone, that is, burn-stone, from its great combustibility. It burns with a blue flame and a peculiar suffocating odor. Sulphur native or prismatic is of two kinds, common and volcanic.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI