Dihydrocodeinone

Part of speech: noun

Definitions

1. A semi-synthetic opioid pain reliever derived from codeine by hydrogenation, used medically to treat moderate pain and cough
2. An opioid medication produced by adding hydrogen atoms to codeine's molecular structure, employed therapeutically for analgesia and cough suppression
3. A hydrogenated codeine derivative functioning as an opioid analgesic and antitussive agent for managing pain and respiratory symptoms

Etymology: Dihydrocodeinone is a chemical name built like a recipe: its parts describe what was done to a parent molecule. The "codeine" at its core comes from the morphine family, named after the opium poppy, and the "-one" ending is the chemist's signal for a ketone, a carbon atom double-bonded to oxygen. The prefix "di-" means two, and "hydro-" refers to added hydrogen atoms. Put together, the name says that this compound is codeine with two extra hydrogens and a ketone group, which is exactly how chemists constructed it from the parent compound. The word is therefore a systematic chemical name rather than an everyday term with a long folk history. Its structure reflects the naming conventions that organic chemists developed in the nineteenth and twentieth centuries, when they needed labels that encoded a molecule's composition so that any trained chemist could reconstruct its structure from the name alone.

Synonyms: hydrocodone, dihydrocodeine derivative