sulfur

Chemistry. Chemical element with the symbol S. A yellow nonmetallic element that occurs either free or combined especially in sulfides and sulfates. It is an essential element in all living organisms and is component of several amino acids and hence in many proteins. It is used in gunpowder, laxatives, fertilizers, insecticides and fungicides. The radioactive isotope sulfur-35 is used as marker in protein research.

Search for publications that include this term →