m 3 o 1 u 1 l 1 t 1 e 1 r 1
7 letters · 9 points in Scrabble
Meaning
noun an animal (especially birds and arthropods and reptiles) that periodically shed their outer layer (feathers or cuticle or skin or hair)
originFrom moult + -er.
Etymology from Wiktionary, CC BY-SA 3.0