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(Animals) any of several cephalopod molluscs of the genus Nautilus, esp N. pompilius, of warm and tropical seas, having a partitioned pale pearly external shell with brown stripes. Also called: chambered nautilus Compare paper nautilus
nau•ti•lus(ˈnɔt l əs, ˈnɒt-)
n., pl. nau•ti•lus•es, nau•ti•li (ˈnɔt lˌaɪ, ˈnɒt-)
1. Also called chambered nautilus, pearly nautilus. any cephalopod of the genus Nautilus having a spiral, chambered shell with a pearly interior.
[1595–1605; < Latin < Greek nautílos paper nautilus, literally, sailor, derivative of naûs ship]
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|Noun||1.||pearly nautilus - cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions|
cephalopod, cephalopod mollusk - marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles
genus Nautilus - type genus and sole recent representative of the family Nautilidae