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chambered nautilus, pearly nautilus, nautilus | cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions | |
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nautilus, paper nautilus, Argonaut, Argonauta argo | cephalopod mollusk of warm seas whose females have delicate papery spiral shells ❲Argonauta argo❳ | |
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nautilus, nuclear submarine, nuclear-powered submarine | a submarine that is propelled by nuclear power |