"Chemistries" Natural Recordings by Native Speakers
The plural form of "chemistry", referring to the scientific study of the composition, properties, and reactions of substances, or the specific characteristics and properties of a particular substance or compound.
Chemiluminescence is the process by which light is produced as a result of a chemical reaction. It is a type of luminescence, a broader term that includes other types of light production, such as bioluminescence and electroluminescence. Chemiluminescence is often accompanied by the release of heat and may occur naturally or artificially. Examples of chemiluminescence include glowing sticks, copper chloride flames, and the production of light by certain chemical reactions that occur in the body, such as the breakdown of certain amino acids.