English Dictionary

nautilus

/ˈnɔː.tɪ.ləs/

noun

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.

The nautilus is a fascinating marine mollusc.

意味（1）

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.

He was still prepared to go on collecting all that life could offer, like a chambered nautilus patiently adding new cells to its slowly expanding spiral.

意味（2）

A kind of diving bell that sinks or rises by means of compressed air.