nautilus
/ˈnɔ.tɪ.ləs/ noun C2- A marine mollusc, of the family Nautilidae native to the Pacific Ocean and Indian Ocean, which has tentacles and a spiral shell with a series of air-filled chambers, of which Nautilus is the type genus.
- A kind of diving bell that sinks or rises by means of compressed air.
- A paper nautilus (actually an octopus).
Plural nautiluses
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“Nautilus.
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