sulfur
n//ˈsʌl.fə//svavel, svavla
(uncountable) A chemical element (symbol S) with an atomic number of 16, having a bright yellow color and characteristic smell, used commercially in a variety of products such as insecticides, black powder, and matchsticks.
(transitive) To treat with sulfur, or a sulfur compound, especially to preserve or to counter agricultural pests.