What is "nautilus"

Nautilus \Nau"ti*lus\, n.; pl. E. Nautiluses, L. Nautili. [L., fr. Gr. nayti`los a seaman, sailor, a kind of shellfish which was supposed to be furnished with a membrane which served as a sail; fr. nay^s ship. See Nave of a church.]

1. (Zo["o]l.) The only existing genus of tetrabranchiate cephalopods. About four species are found living in the tropical Pacific, but many other species are found fossil. The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a continuous and nearly central tube or siphuncle. See Tetrabranchiata.

   Note: The head of the animal bears numerous simple tapered arms, or tentacles, arranged in groups, but not furnished with suckers. The siphon, unlike, that of ordinary cephalopods, is not a closed tube, and is not used as a locomotive organ, but merely serves to conduct water to and from the gill cavity, which contains two pairs of gills. The animal occupies only the outer chamber of the shell; the others are filled with gas. It creeps over the bottom of the sea, not coming to the surface to swim or sail, as was formerly imagined.

2. The argonaut; -- also called paper nautilus. See Argonauta, and Paper nautilus, under Paper.

3. A variety of diving bell, the lateral as well as vertical motions of which are controlled, by the occupants.

marine cephalopod, c.1600, from Latin nautilus, in Pliny a kind of marine snail (including also squid, cuttlefish, polyps, etc.), from Greek nautilos "paper nautilus," literally "sailor," from nautes "sailor," from naus "ship" (see naval). The cephalopod formerly was thought to use its webbed arms as sails.

n. A marine mollusc, of the family ''(taxlink Nautilidae family noshow=1)'' native to the Pacific Ocean and Indian Ocean, which has tentacles and a spiral shell with a series of air-filled chambers, of which (taxlink Nautilus genus noshow=1) is the type genus.

1. n. a submarine that is propelled by nuclear power [syn: nuclear submarine, nuclear-powered submarine]

2. cephalopod mollusk of warm seas whose females have delicate papery spiral shells [syn: paper nautilus, Argonaut, Argonauta argo]

3. cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions [syn: chambered nautilus, pearly nautilus]

4. [also: nautili (pl)]

The nautilus (from the Latin form of the original Greek ναυτίλος, 'sailor') is a pelagic marine mollusc of the cephalopod family Nautilidae, the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina.

It comprises six living species in two genera, the type of which is the genus Nautilus. Though it more specifically refers to species Nautilus pompilius, the name chambered nautilus is also used for any species of the Nautilidae.

Nautilidae, both extant and extinct, are characterized by involute or more or less convolute shells that are generally smooth, with compressed or depressed whorl sections, straight to sinuous sutures, and a tubular, generally central siphuncle. Having survived relatively unchanged for millions of years, nautiluses represent the only living members of the subclass nautiloidea, and are often considered " living fossils."

The name "nautilus" originally referred to the pelagic octopuses of the genus Argonauta, otherwise known as paper nautiluses, as the ancients believed these animals used their two expanded arms as sails.

The Nautilus is the fictional submarine captained by Nemo featured in Jules Verne's novels Twenty Thousand Leagues Under the Sea (1870) and The Mysterious Island (1874). Verne named the Nautilus after Robert Fulton's real-life submarine Nautilus (1800). Three years before writing his novel, Jules Verne also studied a model of the newly developed French Navy submarine Plongeur at the 1867 Exposition Universelle, which inspired him for his definition of the Nautilus.

Nautilus is the common name of the Nautilidae family of marine animals, which also contains the genus Nautilus.

Nautilus may also refer to:

Nautilus is a 1982 computer game for the Atari 8-bit series created by Mike Potter and distributed by Synapse Software. The players control a submarine, the Nautilus, or a destroyer, the Colossus, attempting to either destroy or rebuild an underwater city. The game is historically notable as the first to feature a "split screen" display to allow both players to move at the same time.

"Nautilus" is the sixth and final track on the 1974 album, One, by the jazz musician Bob James.

Nautilus is an Italian publisher based in Turin. Started in 1981, it is linked with [Anarchism]. One of its most prestigious publications is the translation of the complete collection of the issues of the Situationist International. It should not be confused with Edizioni Nautilus Torino ( sito web http://www.nautilustorino.it/home.html ), a publisher in Anthropology.

Nautilus is a neighborhood of Mid-Beach in the city of Miami Beach, Florida, United States. It is bound by Surprise Lake and 47th Street to the north, 41st Street to the south, Biscayne Waterway to the east, and Biscayne Bay to the west.

Nautilus is a genus of cephalopods in the family Nautilidae. Species in this genus differ significantly in terms of morphology from those placed in the sister taxon Allonautilus. The oldest fossils of the genus are known from the Late Eocene Hoko River Formation, in Washington State and from Late-Eocene to Early Oligocene sediments in Kazakhstan. The oldest fossils of the modern species Nautilus pompilius are from Early Pleistocene sediments off the coast of Luzon in the Philippines.

The common term nautilus usually refers to any extant members of the Nautilidae family.

Nautilus is a program which allows two parties to securely communicate using modems or TCP/IP. It runs from a command line and is available for the Linux and Windows operating systems. The name was based upon Jules Verne's Nautilus and its ability to overcome a Clipper ship as a play on Clipper chip.

Nautilus is historically significant in the realm of secure communications because it was one of the first programs which were released as open source to the general public which used strong encryption. It was created as a response to the Clipper chip in which the US government planned to use a key escrow scheme on all products which used the chip. This would allow them to monitor "secure" communications. Once this program and another similar program PGPfone were available on the internet, the proverbial cat was "out of the bag" and it would have been nearly impossible to stop the use of strong encryption for telephone communications.

The project must move end of May 2014 due to the decision of Fraunhofer FOCUS to shut down the developer platform that hosted dozens of vital free software projects like mISDN, gpsd, etc.

Nautilus is a black-and-white photograph taken by Edward Weston in 1927 of a single nautilus shell standing on its end against a dark background. It has been called "one of the most famous photographs ever made" and "a benchmark of modernism in the history of photography."

Nautilus (album) is the fifth official studio album of Serbian industrial group dreDDup. dreDDup stated in 2010 that there will be no more studio albums and that band is going into album recording hibernation. Nautilus came as the surprise coming so shortly after its predecessor dreDDup (album). It was recorded during the period 2011-2012 in DURU studio. The complete production and studio mastering/mixing was done by miKKa. Originally pictured as the album concerning the end of the world, but later changed into a story about the abandonment of the mankind's norms and voyage into the depths of the ocean. The artwork was created by the conceptual artist Bojana Jarošenko who also created the cover for the dreDDup (album). This album also concluded some guest musicians such as Gaga Lee of Hype! , Simone from Lesboes in Action and cult actress Ljuma Penov. Album was first released by Glory & Honour records and then in 2014. re-released for Miner Recordings.

Nautilus is an online and print science magazine that "combines the sciences, culture and philosophy into a single story." It publishes one "issue" on a selected topic each month on its website, releasing one "chapter" each Thursday. Issue topics have included human uniqueness, time, uncertainty, genius, mergers & acquisitions, and feedback. Nautilus also publishes a print edition six times a year, a daily blog called Facts So Romantic, and a news aggregator called Three Sentence Science that is updated multiple times a day. It makes regular use of original commissioned illustration to accompany its stories.