| Definition of 'nautilus' |
Princeton's WordNet |
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1. (noun) nautilus, nuclear submarine, nuclear-powered submarine
a submarine that is propelled by nuclear power
2. (noun) paper nautilus, nautilus, Argonaut, Argonauta argo
cephalopod mollusk of warm seas whose females have delicate papery spiral shells
3. (noun) chambered nautilus, pearly nautilus, nautilus
cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions
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| Definition of 'nautilus' |
Webster Dictionary |
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1. (noun) nautilus
the only existing genus of tetrabranchiate cephalopods. About four species are found living in the tropical Pacific, but many other species are found fossil. The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a continuous and nearly central tube or siphuncle. See Tetrabranchiata
2. (noun) nautilus
the argonaut; -- also called paper nautilus. See Argonauta, and Paper nautilus, under Paper
3. (noun) nautilus
a variety of diving bell, the lateral as well as vertical motions of which are controlled, by the occupants
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| Definition of 'nautilus' |
U.S. National Library of Medicine |
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1. nautilus
The sole genus in the family Nautilidae, order Nautilida, comprised of CEPHALOPODS with spiral external shells that are separated into chambers.
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Definitions of nautilus 
