chiton, coat-of-mail shell, sea cradle, polyplacophore
['promontory, headland, head, foreland', 'panpipe, pandean pipe, syrinx', 'sandbar, sand bar', 'crayfish, crawfish, crawdad, crawdaddy', 'sea slug, nudibranch', 'ice lolly, lolly, lollipop, popsicle', 'sunscreen, sunblock, sun blocker']