Radioiodinate

Part of speech: verb

Definitions

1. To attach a radioactive iodine isotope to a molecule or compound for use in medical imaging or research
2. To incorporate a radioactive form of iodine into a substance so it can be tracked or detected in biological systems
3. To treat a chemical compound by bonding radioactive iodine to it for diagnostic or experimental purposes

Etymology: "Radioiodinate" is a technical coinage built from "radio-" and "iodinate," with the first part pointing to radioactivity and the second to the chemistry of iodine. The base "iodinate" means to treat or combine a substance with iodine, and the word "radioiodine" came first, naming radioactive isotopes of iodine. Adding "radio-" to "iodinate" produces a term for attaching a radioactive form of iodine to a molecule, most often a biological compound used in medical imaging or treatment. The word belongs to the vocabulary of mid-twentieth-century nuclear medicine, when researchers began using radioactive isotopes as tracers and therapies. Because it is a modern scientific formation rather than a classical or inherited term, its meaning stays tightly tied to the labelling procedure it describes.