noun a worthless or contemptible person
In environmental science, 'scum' refers to a layer of algae or other organic matter that forms on the surface of bodies of water, often as a result of pollution or nutrient runoff.
In criminal justice, 'scum' is sometimes used colloquially to refer to criminals or individuals engaged in illegal activities.
In chemistry, 'scum' can refer to a residue or film that forms on the surface of a liquid, often as a result of impurities or reactions between substances.
In literature, 'scum' may be used to describe a character or group of characters who are seen as morally repugnant or despicable.
In psychology, 'scum' may be used as a derogatory term to describe a person with certain negative traits or behaviors.