# acute flaccid myelitis

> English word · Noun

## Definitions
1. A sudden onset illness of children causing loss of muscle tone and reflexes, weakness in arms and legs, which may lead to paralysis. The illness has an indeterminate cause and no known treatment.

## Etymology
From acute + flaccid + myelitis.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/acute-flaccid-myelitis