What does nautili mean?
Nautili is the established English plural of nautilus, referring to marine cephalopod molluscs with external shells divided into internal chambers. A nautilus is especially recognizable for its spiral shell and the ring of tentacles that extend from its head. The form nautili is recorded in dictionaries, although nautiluses is more common in contemporary prose. Both are plural nouns and are normally used with plural agreement, so they can appear naturally after expressions such as several or many. The term belongs to zoological and marine biology rather than general vocabulary. It is useful when discussing groups of these animals, collections of their distinctive shells, or the structure and evolution of cephalopod shells. Although the word may sound unusual, it is a recognized plural form rather than a separate biological term.
nounThe plural of nautilus, a marine cephalopod mollusc with a chambered external shell and a ring of tentacles.
- The plural form of nautilus, a marine cephalopod mollusc.
"Marine biologists observed several nautili resting along the reef."
"A row of nautili appeared near the deep-sea ledge."
"The museum's collection includes shells taken from nautili collected during several expeditions."
Nautili is itself an established but less common plural of nautilus; nautiluses is the usual modern plural.
"The divers encountered several nautiluses during the expedition."
A nautilus is literally a “sailor,” named from a Greek word associated with ships.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of nautili
Nautili is an established English plural form alongside nautiluses. The singular nautilus was borrowed through Latin from Greek nautilos, meaning “sailor,” a word associated with naus, meaning “ship.” The same ship and sailing association underlies nautical, naval, and navigate, while Greek nautia contributed to the word nausea.
How nautili is actually used
Nautili is an established but less common plural; nautiluses is usually preferred in contemporary English. It can sound technical or traditional but is not restricted to a particular region.
Easily confused with nautili
Nautilus is the singular form, while nautili is an established plural.
A nautiloid is a broader term for a cephalopod belonging to the group that includes nautiluses and their extinct relatives.