Definition of nautilus
nautiluses
ornautili
play \ˈnȯ-tə-ˌlī, -ˌlē, ˈnä-\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 : paper nautilus
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Recent Examples of nautilus from the Web
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Wick, for one, wouldn’t be able to survive without his nautilus pills.
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The structure of the modern nautilus shells was not as close to that of prehistoric ammonites as Case and colleagues suggested, and the robotic mosasaur model was too simple and inflexible.
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
Learn More about nautilus
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Spanish Central: Translation of nautilus Nglish: Translation of nautilus for Spanish speakers Britannica.com: Encyclopedia article about nautilus
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