nautilus

/'nɔ:tiləs/

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Explanation of the Word "Nautilus"

Definition: The word "nautilus" can refer to two main things:

Usage Instructions:

• You can use "nautilus" when talking about marine life or when discussing advanced submarines.
• It is a noun, so it is usually used as the subject or object in a sentence.

Examples:

1. Animal: "The nautilus is a fascinating creature because of its beautiful spiral shell."
2. Submarine: "The USS Nautilus was the first nuclear-powered submarine in the world."

Advanced Usage:

In scientific or biological contexts, you might discuss the nautilus's unique characteristics, such as its ability to regulate its buoyancy using gas-filled chambers within its shell.

Word Variants:

• Nautilus (plural: nautiluses or nautili): You can say "two nautiluses" or "several nautili."

Different Meanings:

• The primary meanings are related to the animal and the submarine. There are no significant alternative meanings outside these contexts.

Synonyms:

• For the animal, there are no direct synonyms, but you might refer to it as a "cephalopod."
• For the submarine, you might refer to it as a "nuclear submarine" in a broader context.

Related Idioms & Phrasal Verbs:

• There are no common idioms or phrasal verbs that specifically use the word "nautilus," as it is a specialized term.

Recap:

• Nautilus refers to a sea creature with a spiral shell or a type of nuclear submarine.
• It is used as a noun, typically in discussions about marine biology or naval technology.
• It has no widely recognized synonyms or idioms associated with it.

Academic

Noun

1. cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions
2. cephalopod mollusk of warm seas whose females have delicate papery spiral shells
3. a submarine that is propelled by nuclear power

Synonyms

• chambered nautilus
• pearly nautilus
• paper nautilus
• Argonaut
• Argonauta argo
• nuclear submarine
• nuclear-powered submarine