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nautilus

nautilus

1 8.4
A sea animal with a spiral shell that has inner chambers
  • noun
  • /ˈnɔːtɪləs/
translation icon : nautilus
  • The nautilus shell, horns of sheep, whirlpools, tornadoes, our fingerprints, our DNA and our Milky Way, inclusive.
  • nautilus shell
  • chambered nautilus

And then you have this peculiar offshoot from that kind of cephalopod, the group that nautiluses are a kind of throwback to.

Examples

  • The nautilus is a fascinating creature known for its distinct spiral shell, which it uses for buoyancy in the ocean.

  • How can a stuffed skunk and a nautilus shell improve students' learning?

    Academic text (1995)
  • And then you have this peculiar offshoot from that kind of cephalopod, the group that nautiluses are a kind of throwback to.

  • The gold paper was stamped with a pattern of ridges and spines, a miniature nautilus wrapped around dark, imported chocolate.

    Fiction book (1993)
  • "Think you'll find trilobites or a chambered nautilus that looks just like fossils on Earth?" Dex took a deep breath, almost a sigh.

    Fiction book (1999)
  • In tropical waters, divers often encounter the nautilus, a marine animal that retreats into its beautifully spiraled, chambered shell.

  • Scientists study the nautilus to understand how its shell structure helps it survive in the warm seas where it lives.

Synonyms

chambered nautilus
vsnautilus
  • Australian
9.9

A sea animal with a spiral shell divided into chambers and shiny white walls

is the general warm-sea cephalopod with a spiral shell divided into sections
pearly nautilus
vsnautilus
9.9

A sea animal like a squid that has a spiral shiny shell

is the broader name for similar warm-sea cephalopods not limited by range

Compounds

chambered nautilus
  • Australian
9.9

A sea animal with a spiral shell divided into chambers and shiny white walls

A female sea animal that makes a thin shell like paper in a spiral shape

A sea animal like a squid that has a spiral shiny shell

Surface Forms

nautilus singular
nautiluses plural
nautili plural

Etymology

Nautilus comes from the Greek nautilos, from naut- meaning 'ship' or 'sailor', the same root you see in nautical and astronaut. The sea animal's spiral shell looks like a tiny ship and helps it float, so the name fits its shell and the way it moves.