nautilus

play
noun nau·ti·lus \ˈnȯ-tə-ləs, ˈnä-\

Definition of nautilus

plural

nautiluses

or

nautili

play \ˈnȯ-tə-ˌlī, -ˌlē, ˈnä-\
  1. 1 :  any of a genus (Nautilus) of cephalopod mollusks of the South Pacific and Indian oceans with a spiral chambered shell that is pearly on the inside —called also chambered nautilus

  2. 2 :  paper nautilus

Recent Examples of nautilus from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nautilus'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of nautilus

Origin and Etymology of nautilus

New Latin, from Latin, paper nautilus, from Greek nautilos, literally, sailor, from naus ship


First Known Use: 1601


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