(mineralogy) A triclinic-pinacoidal mineral containing antimony, hydrogen, oxygen, and sulfur.

(mycology) The spiral female organ of an ascomycetous fungus from which asci are produced

polymethyl methacrylate (polymer of methyl methacrylate), a tough transparent plastic used sometimes in lieu of glass.

A market town and civil parish with a town council in Selby district, North Yorkshire, England (OS grid ref SE4843).