Noah Webster
Sulphore
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.