11 letters · 25 points in Scrabble
noun a viral disease (usually fatal) of rabbits
originEtymology tree English myxoma Proto-Indo-European *-tis Ancient Greek -τις (-tis) Ancient Greek -σῐς (-sĭs) Ancient Greek -ωσις (-ōsis)bor. New Latin -ōsislbor. English -osis English myxomatosis From myxoma + -osis.
Etymology from Wiktionary, CC BY-SA 3.0