Deiodination

Part of speech: noun

Definitions

1. The chemical process of removing iodine atoms from a compound, often involving enzymes breaking iodine bonds
2. A reaction that strips iodine elements away from molecules, typically to modify their biological or chemical properties
3. The act of detaching iodine groups from substances, usually to change or regulate their chemical structure

Etymology: Iodination is the process of adding iodine to a compound, and "deiodination" takes that process and runs it in reverse. The prefix "de-" comes from Latin, where it meant "down," "away," or "off," and in chemistry it marks the removal of something from a molecule. So the word is simply a transparent building block: iodine's name, the "-ation" suffix that turns an action into a noun, and a reversing prefix stacked on top. The practical interest lies in why chemists and biologists care about removing iodine at all. Iodine atoms are heavy and often sit on molecules that the body or a laboratory wants to modify, so stripping one away can change how a compound behaves. Thyroid hormones are a familiar example: the body removes iodine from them through enzymatic deiodination, and that step controls how active the hormone is.

Synonyms: iodine removal, deiodinization

Antonyms: iodination