The term 'SEALING RING' is often used in the context of a GASKET, which is a mechanical seal that fills the space between two or more mating surfaces, generally to prevent leakage from or into the joined objects while under compression. A sealing ring is a type of GASKET that is designed to provide a tight seal between two surfaces. It is typically made of metal or rubber and is used to prevent the escape of liquids or gases.