coral reef
['sturgeon', 'African chameleon, Chamaeleo chamaeleon', 'breakwater, groin, groyne, mole, bulwark, seawall, jetty', 'promontory, headland, head, foreland', 'cauliflower', 'American chameleon, anole, Anolis carolinensis', 'submarine, pigboat, sub, U-boat']