Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A mollusk of the subclass Nautiloidea, which includes the nautiluses and numerous extinct species known only from fossils.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Resembling a nautilus.
  • n. Any mollusc or shell of the genus Nautilus or family Nautilidae.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Like or pertaining to the nautilus; shaped like a nautilus shell.

from The Century Dictionary and Cyclopedia

  • Nautiliform; having the characters of a nautilus: belonging to the Nautiloidea.
  • Resembling a nautilus: specifically applied to those foraminifers whose manychambered test resembles a nautilus-shell.
  • n. That which is nautiloid, as the test of an infusorium

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

From New Latin Nautiloīdea, subclass name : Latin nautilus, nautilus; see nautilus + Greek -oeidēs, -oid.

from Wiktionary, Creative Commons Attribution/Share-Alike License

nautilus +‎ -oid

Examples

  • At the Guggenheim there will be one singer, whose voice will be completely distorted by the nautiloid curves of the museum and a PA system, so I'm going to have to break down the visual vocabulary of abstraction and directly connect it to the forces and geometry described in the Randall/Sundrum model.

    Matthew Ritchie: A Perilous Intellectual High Wire Act

  • As I work a lot with sculpey, I learned for example from an accident with the model of an orthocone nautiloid that it can become extremely though when I is baked on higher temperatures.

    BoarCroc

  • In the case of the nautiloid the shell partly melted, and the remaining shell was so though that I had problems to remove it with a saw.

    BoarCroc

  • I also used my first nautiloid model sculpting time a bit more than a half hour, painting time with water colours many frustrating hours... to make some photos of a prehistoric underwater diorama by photographing in front of a page from a book about the prehistoric seas:

    Color Underwater

  • There is another thing from that area that I think is a nautiloid.

    Any ideas?

  • Would/Could a nautiloid have that sort of "S"-ish shape to it though?

    Any ideas?

  • Hmm...a very strangely weathered/deformed orthoconic nautiloid like Endoceras?

    Any ideas?

  • A friend of mine asked his invert prof. one that works int he Paleozoic what it might be and he thinks it is a nautiloid cephalopod irregularly sectioned, similar to Gonioceras occidentale.

    Any ideas?

  • Distinct from their nautiloid relatives, and alone among all mollusks, coleoids lack a shell.

    Archive 2008-02-01

  • If people want to have two monospecific genera of extant nautiloid Nautilus and Allonautilus to highlight the distinctiveness of the two species, I guess I don't really care, but there really isn't much known genetic diversity out there among extant nautiluses other than that seen between scrobiculatus and pompilius.

    Nautilus: still evolving after 500 million years

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