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Longman Dictionary of Contemporary English
double helix
▪ The entwined serpents forming a double helix gave birth to the Caduceus.
▪ Cobras are constantly depicted entwined in a double helix.
▪ If the ends of such non-dividing clone are held while it grows, then unexpectedly a double helix appears.
▪ These conformations influence the position of the phosphate group with respect to the grooves of the double helix.
▪ In the formation of the double helix, a total of 12 rotors are restricted per base pair stack.
▪ Each then acts as a template to which other simpler molecules become attached until each has once more become a double helix.
▪ Thus each double helix becomes two double helices, with the two new doublets remaining joined at the centromere.
▪ A helix is any line in which the curvature and torsion measured anywhere and everywhere are in a constant proportion.
▪ A right handed helix, moving away, is the departure of a friend.
▪ Similar principles apply to helices: A right handed helix, moving forward, is anticlockwise and aggressive.
▪ The eastbound helix coiled against the sky like a giant concrete snail.
▪ The spiral and its three dimensional expression, the helix, have a handedness that is intrinsic.
▪ The twisting of the chain into a helix is a large number of small twists by the individual amino acids.
▪ These residues lie 25-30 away from Lys 69 and Arg73 in the recognition helix.
▪ This is similar to the commonly observed phosphate-binding sites at helix termini in other proteins and, in particular, other repressor-operator complexes.
The Collaborative International Dictionary

Helix \He"lix\, n.; pl. L. Helices, E. Helixes. [L. helix, Gr. ?, ?, fr. ? to turn round; cf. L. volvere, and E. volute, voluble.]

  1. (Geom.) A nonplane curve whose tangents are all equally inclined to a given plane. The common helix is the curve formed by the thread of the ordinary screw. It is distinguished from the spiral, all the convolutions of which are in the plane.

  2. (Arch.) A caulicule or little volute under the abacus of the Corinthian capital.

  3. (Anat.) The incurved margin or rim of the external ear. See Illust. of Ear.

  4. (Zo["o]l.) A genus of land snails, including a large number of species.

    Note: The genus originally included nearly all shells, but is now greatly restricted. See Snail, Pulmonifera.

Douglas Harper's Etymology Dictionary

"a spiral thing," 1560s, from Latin helix "spiral," from Greek helix (genitive helikos), related to eilein "to turn, twist, roll," from PIE *wel-ik-, from root *wel- (3) "to turn, revolve" (see volvox).


n. 1 (context mathematics English) A curve on the surface of a cylinder or cone such that its angle to a plane perpendicular to the axis is constant; the three-dimensional curve seen in a screw or a spiral staircase. 2 (context architecture English) A small volute under the abacus of a Corinthian capital. 3 (context anatomy English) The incurved rim of the external ear. 4 An upside down midair 360° spin in playboating.

  1. n. a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle [syn: spiral]

  2. a structure consisting of something wound in a continuous series of loops; "a coil of rope" [syn: coil, spiral, volute, whorl]

  3. type genus of the family Helicidae [syn: genus Helix]

  4. [also: helices (pl)]

Helix, OR -- U.S. city in Oregon
Population (2000): 183
Housing Units (2000): 68
Land area (2000): 0.114338 sq. miles (0.296135 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 0.114338 sq. miles (0.296135 sq. km)
FIPS code: 33250
Located within: Oregon (OR), FIPS 41
Location: 45.850847 N, 118.658297 W
ZIP Codes (1990): 97835
Note: some ZIP codes may be omitted esp. for suburbs.
Helix, OR
Helix (disambiguation)

A helix is a spiral-like space curve.

Helix may also refer to:

Helix (database)

Helix is a pioneering database management system for the Apple Macintosh platform, created in 1983. Helix uses a graphical " programming language" to add logic to its applications, allowing non-programmers to construct sophisticated applications. It never grew beyond being a niche product. As of 2015, Helix is thirty-one years old, but still has a dedicated, if small, following.

Despite being the first multiuser database on any PC platform, the first object-based, visual programming tool, and, perhaps, the first relational database on a PC platform, Helix's marketing and ownership problems led it to a life as a niche product on an OS with a small market share.

Helix (ear)

The helix is the prominent rim of the auricle. Where the helix turns downwards posteriorly, a small tubercle is sometimes seen, namely the auricular tubercle of Darwin.

Helix (Marvel Comics)

Helix (Rafael Carago) is a fictional character, a mutate superhero appearing in American comic books published by Marvel Comics. He was created by Tom DeFalco and Todd DeZago in Spider-Man: Maximum Clonage Alpha (part of the Clone Saga). His first appearance as a New Warrior was in New Warriors #62.

Helix (video game)

Helix is a music video game for WiiWare by Ghostfire Games for 1000 Wii Points (and, now that DSiWare has been created, Nintendo Points). The objective of the game is to accurately copy gestures with the Wii Remote to the beat of the music. The game encourages players to use two Wii Remotes to play, and features 26 music tracks from independent musicians.

Helix was released on August 25, 2008 in North America and on September 26, 2008 in Europe.

Helix (multimedia project)

Helix DNA is a project to produce computer software that can play audio and video media in various formats, aid in producing such media, and serve them over a network. It is intended as a largely free and open source digital media framework that runs on numerous operating systems and processors (including mobile phones) and was started by RealNetworks which contributed much of the code. The Helix Community is an open collaborative effort to develop and extend the Helix DNA platform.

Helix DNA Client is a software package for multi-platform multi-format media playback. Helix Player is a media player that runs on Linux, Solaris, Symbian and FreeBSD and uses the Helix DNA Client. The Helix DNA Producer application aids in the production of media files, and Helix DNA Server can stream media files over a network.


A helix (pl: helixes or helices) is a type of smooth space curve, i.e. a curve in three-dimensional space. It has the property that the tangent line at any point makes a constant angle with a fixed line called the axis. Examples of helices are coil springs and the handrails of spiral staircases. A "filled-in" helix – for example, a spiral ramp – is called a helicoid. Helices are important in biology, as the DNA molecule is formed as two intertwined helices, and many proteins have helical substructures, known as alpha helices. The word helix comes from the Greek word ἕλιξ, "twisted, curved".

Helix (gastropod)

Helix is a genus of large air-breathing land snails, terrestrial pulmonate gastropod molluscs.

This genus is native to Europe and the regions around the Mediterranean Sea.

Helix is the type genus of the family Helicidae.

The best-known species include Helix aspersa, the common, or brown garden snail, and Helix pomatia, the Roman snail, Burgundy snail, or edible snail. H. pomatia and some other species are eaten as escargots.

Helix snails have been introduced throughout the world, where some, especially H. aspersa, have become garden pests.

The genus Helix is known from the Oligocene on.

Snails in this genus create and use love darts during mating.

Helix (band)

Helix is a Canadian hard rock/ heavy metal band. They formed in 1974, and are best known for their 1984 single " Rock You". The original lineup was formed by drummer Bruce Arnold, and consisted of lead vocalist Brian Vollmer, guitarists Ron Watson and Rick "Minstrel" Trembley, keyboardist Don Simmons, and bassist Keith "Bert" Zurbrigg. However, their most well known lineup, and the one that recorded "Rock You", was the 1980s version of the band: Vollmer on vocals, accompanied by guitarists Brent "The Doctor" Doerner and Paul Hackman, bassist Daryl Gray, and drummer Greg "Fritz" Hinz. The history of the band has been marked by many lineup changes, with Vollmer being the sole constant member and only remaining member of the original lineup. Although Hackman was killed in a tour bus accident in 1992, the surviving members of the 1980s lineup reunited in 2009 for an album and have continued to tour since 2011.

Helix have toured with bands such as Kiss, Aerosmith, Rush, Mötley Crüe, Alice Cooper, Whitesnake, Night Ranger, Heart, Quiet Riot, W.A.S.P., Ian Gillan and Motörhead among others.

Their most recent studio album is Bastard of the Blues (2014).

Helix (company)

Helix is a family-run United Kingdom-based manufacturer of scholastic stationery. It currently employs 75 people, and exports to over 65 countries, with offices in Chicago and Hong Kong and with UK headquarters based in Lye, West Midlands.

Helix (composition)

Helix is a single-movement orchestral composition by the Finnish composer Esa-Pekka Salonen. The work was commissioned by the BBC and was first performed August 27, 2005 at The Proms by the World Orchestra for Peace under conductor Valery Gergiev, to whom the piece is dedicated.

Helix (comics)

Helix was a short-lived, science fiction and science fantasy imprint of DC Comics, launched in 1996 and discontinued in 1998. In early promotional materials prior to the release of the first title, the imprint was called Matrix instead of Helix. It was renamed because of the then-upcoming film, The Matrix. It featured a handful of ongoing monthly series, several limited series, and one short graphic novel.

Despite the involvement of successful science fiction/fantasy novelists Michael Moorcock, Lucius Shepard and Christopher Hinz, and established comics creators Howard Chaykin, Elaine Lee, Matt Howarth, Warren Ellis, Walt Simonson, and Garth Ennis, sales of the comic books were low, and most of the ongoing titles were cancelled after 12 or fewer issues. Ellis' Transmetropolitan was switched to the Vertigo imprint, where it continued for several more years before reaching its planned conclusion. Ennis' Bloody Mary mini-series and Michael Moorcock's Multiverse were later collected in Vertigo-label paperbacks and Moeller's Sheva's War was released as a graphic novel paperback by Dark Horse.

Limited availability of the books in bookstores that already sold science fiction, resistance among science-fiction readers to serialized monthly publication, the lower visibility of the line's deliberately muted cover color palette, and the lack of interest in genre SF among regular patrons of comic-book stores, were all cited by industry observers as factors in the imprint's demise.

Helix (newspaper)

The Helix was founded in 1967 after a series of organizational meetings held at the Free University of Seattle involving a large and eclectic group including Paul Dorpat, Tom Robbins, Lorenzo Milam and others from KRAB-FM, John Ullman of the Seattle Folklore Society, Unitarian minister Paul Sawyer, and many others. A member of both the Underground Press Syndicate and the Liberation News Service, it published a total of 125 issues (sometimes as a weekly, sometimes as a biweekly) before folding on June 11, 1970.

The first issue was produced by Paul Dorpat with $200 in borrowed capital, out of a rented storefront on Roosevelt Way NE. After being turned down by the first printers they approached, they found a printer in Ken Monson, communications director of the International Association of Machinists local, who had recently acquired a printing press. 1500 copies were printed of the first issue. By the fourth biweekly issue sales had reached 11,000 copies. After the first two issues a "split-font" rainbow effect was sometimes used to print psychedelically colorful front covers; issues averaged 24 pages, with illustrations and graphics clipped from old magazines and having little to do with the adjoining copy crammed into the interior pages.

In September 1967 Helix was evicted from the office on Roosevelt Way. On October 15 they opened their new office at 3128 Harvard E., where thery were to remain for the rest of the paper's existence.

Contents of the paper were a New Left/hippie mélange of underground politics, psychedelic graphics, drug culture, bulletins from the Liberation News Service, and rock music reviews, with much coverage of rock festivals in the Pacific Northwest including the Sky River Festivals and concerts at Eagles Auditorium. Frequent contributors included Tom Robbins, while Walt Crowley was responsible for much of the paper's freewheeling design. The Blue Moon Tavern and the Last Exit on Brooklyn coffee house functioned as the paper's unofficial hangouts. In 1970 Robert Glessing reported that although the paper did not pay salaries it was providing food and housing for 11 full-time staffers.

After the demise of the Helix several former staffers, including Crowley and Roxie Grant, went to work at a new community center called the U District Center, at the corner of NE 56th and University Way. Several attempts were made by different groups in Seattle to launch a new paper to take the place of the Helix, including the New Times Journal, Puget Sound Partisan, Sabot, Seattle Flag, Seattle Sound, and the Sun, but none succeeded in recapturing the spirit or the success of the Helix.

Crowley and Dorpat later went on to be two of the three founders of HistoryLink, along with Crowley's wife Marie McCaffrey.

Helix (TV series)

Helix is an American science fiction thriller drama television series that aired on Syfy from January 10, 2014 to April 10, 2015. The series followed a team of scientists from the Centers for Disease Control and Prevention who travelled to a research facility in the Arctic to investigate a potential outbreak of disease. While there, they find themselves stuck in a life-or-death situation that could decide the future of humankind. The executive producers of Helix were Ronald D. Moore, Lynda Obst, Steven Maeda, and Cameron Porsandeh, with Maeda serving as day-to-day showrunner.

On April 29, 2015, Syfy announced that the show was canceled after two seasons.

Helix (roller coaster)

Helix is a steel roller coaster located at Liseberg in Gothenburg, Sweden. The ride, built by Mack Rides, features two linear synchronous motor launches and has a top speed of 100 km/h (62 mph). It features a dual-launch helix. The ride opened on 26 April 2014, Liseberg's opening date for the 2014 season. Helix is the first roller coaster in the world that has a 1-on-1 replica virtual reality experience. This experience is created by ArchiVision, a Dutch 3D studio. During the first two weeks after the premiere visitors could experience the virtual reality replica next to the roller coaster's entrance.

The roller coaster's station building is located where the 3D cinemaMaxxima used to be, by the foot of the tower Atmosfear. The track follows the hillside in a custom-made track design. The elements during the ride include two corkscrews, a pretzel knot, a top hat, an in-line twist, and a rare Norwegian loop. The estimated cost for the project is about 239,000,000 Swedish kronor, about $30,000,000.

Helix is after California Screamin' the second-longest roller coaster with inversions of the world. You can watch the full POV from on Helix here.

Usage examples of "helix".

Ivy over East window of old churches is the Hedera Helix of Bakchos, 483-m.

Shears the gardener is patrolling the faraway fences, checking that his Hedera helix is fanning out nicely against the latticework, for there have been too many nosy folk peering at the house lately.

Long ago, the mechs had converted their organic proteins, made the molecules helix in the sense opposite to what humans could digest.

Triplex oligonucleotides insert themselves inside particular genes, turning the double helix of DNA into a triple helix, hence the name.

With Helix running back and forth, several of the men stumbled against each other to avoid tripping over the dog, leaving only three to swing pipes at Tom from different directions.

Below them she could see the tireless Rillyti laboring over tasks which ranged from the hoisting of mammoth blocks of stone to the painstaking reengraving of a delicately carved helix or volute.

The barroom decorations, the neon signs, the helix machines, the risque holograms were totally absent.

A new double helix swiftly formed, but unlike the graceful rungs of the original structure, this mutated helix was bound together by something that looked like a demented cobweb made out of pasta.

I enjoyed returning to the Hyperion universe to see what had happened to some of the distant Ousters and the Amoiete Spectrum Helix people.

When the Spectrum Helix contingent had introduced themselves, Dem Lia noticed the two Ousters and the Templar spending a few extra seconds staring at Ces Ambre, who smiled back pleasantly.

Each chromosome consists of a DNA double helix that is wrapped around spoollike proteins called histones.

KK-drive projector when the Sstakoun was struck by a second compacted helix of furious energy emitted by the azoic planetary core.

In its center, etched finer than the lines surrounding it, were two lines of beadlike figures spiraling about each other, forming the double helix of heredity, symbol of the Dispersionists.

She craned her head to look at Baltimore’s newest tower condo development, Uptown Helix, thirty floors poised on two broad quadrangles of shops and theaters, all in the shadow of the Bromo-Seltzer Tower.

Carrying the writhing burden down the spidery, slightly tilted helix of the stairs was an awkward and somewhat dangerous task.