A nonmetallic element occurring naturally in large
quantities, either combined as in the sulphides (as pyrites) and
sulphates (as gypsum), or native in volcanic regions, in vast beds
mixed with gypsum and various earthy materials, from which it is melted
out. Symbol S. Atomic weight 32. The specific gravity of ordinary
octohedral sulphur is 2.05; of prismatic sulphur, 1.96.

Any one of numerous species of yellow or orange
butterflies of the subfamily Pierinae; as, the clouded sulphur
(Eurymus, / Colias, philodice), which is the common yellow butterfly of
the Eastern United States.