chiton, coat-of-mail shell, sea cradle, polyplacophore
['hog, pig, grunter, squealer, Sus scrofa', 'French horn, horn', 'sandbar, sand bar', 'porcupine, hedgehog', 'agaric', 'spaghetti squash', 'chain mail, ring mail, mail, chain armor, chain armour, ring armor, ring armour']