13 letters · 20 points in Scrabble
noun an acute viral disease marked by inflammation of nerve cells of the brain stem and spinal cord
originBorrowed from German Poliomyelitis, from the Ancient Greek πολιός (poliós, “grey”) + μυελός (muelós, “marrow”) + -ῖτις (-îtis, “-itis”). Compare French poliomyélite.
Etymology from Wiktionary, CC BY-SA 3.0