kuonaineiden

Kuonaaineet, or kuona-aineet in Finnish, denotes substances regarded as waste or filth. The term is used across Finnish-language scientific and technical literature to refer to waste materials, residues, or excreta produced by biological, industrial, or environmental processes. The genitive form kuonaineiden is used to mean "of the waste substances."

In biology and medicine, kuona-aineet describe excreted or metabolically produced waste products that must be eliminated by an organism, such as soluble metabolites or excretions. In environmental science and industry, the term covers contaminants and residues left after processing, including sludge, slurry, ash, slag, and chemical impurities.

Etymology and usage: kuona means filth or refuse, aine means substance; together kuona-aine denotes a waste substance. The term is primarily used in Finnish; English-language texts typically translate it as waste products, excreta, or contaminants, depending on context.

See also: excretion, waste management, effluent.