(entomology) A yellow pierid butterfly, Phoebis sennae, found in the Americas.

(chemistry, biochemistry) the natural cycle which includes the mineralization of organic sulfur to sulfide, oxidation of this to sulfate, and reduction of this to sulfide followed by microbial incorporation of this into organic compounds

Alternative spelling of sulphur-crested cockatoo

(chemistry) a thioether

(chemistry) a gaseous binary compound, SBr₂, of sulfur and bromine

A yellow bracket fungus, Laetiporus sulphureus, which causes a type of brown rot in trees. The fruiting bodies form on the sides of the trees and can reach several metres in width, but are edible when small.

a sulfur cast

a match whose head consists of a mixture containing sulfur; a small amount of phosphorus is included either on the match, or on a striking surface in the case of a safety match

(chemistry) Any binary compound of sulfur and oxygen; either sulfur monoxide, sulfur dioxide or sulfur trioxide.

(chemistry) a gaseous binary compound, SF₆, of sulfur and fluorine, used in the electricity industry as a dielectric