Deinnervation

Part of speech: noun

Definitions

1. A process involving the loss or removal of nerve supply to a body part or organ
2. The event in which nerves are severed or otherwise damaged, resulting in the cessation of their function
3. The condition characterized by the lack of neural connections, which can lead to muscle atrophy or dysfunction

Etymology: "Deinnervation" is simply "de-" attached to "innervation," so its history is that of the base word with a reversing prefix. "De-" comes from Latin, where it meant "down, away from, or off," and in English it works as a reversal marker: to deinnervate is to undo the nerve supply that innervation had provided. "Innervation" is itself built from "in-" and the Latin "nervus," meaning sinew or nerve, with the Latin noun "innervatio" describing the act of supplying nerves to a part of the body. The word belongs to the vocabulary of medicine and physiology, where it was adopted to describe how nerves reach and control muscles and organs. Because "deinnervation" follows the same pattern, it names the opposite condition, where a body part loses that nerve connection, whether through injury, surgery, or disease.

Synonyms: denervation

Antonyms: innervation