All articles A–Z

Slime mold ecology and field study

Slime mold ecology and field study examines where slime molds live and fruit, the substrates and climates that govern them, and survey techniques from timed searches to moist chamber cultures.

Slime mold fruiting bodies

A slime mold fruiting body, also called a sporophore or sporocarp, is the spore-bearing structure a myxomycete plasmodium forms when it stops feeding, typically within hours to days.

Slime mould algorithm

The slime mold algorithm (SMA) is a swarm-based metaheuristic for numerical optimization, proposed by Shimin Li and colleagues in 2020, that mimics the foraging behavior of slime mold.

Slime Rancher

Developed by Monomi Park, the game Slime Rancher involves Beatrix LeBeau wrangling slimes on a planet a thousand light-years from Earth. It sold six million copies in 2017.

Slimer, also called Onionhead or the Green Ghost, is the gluttonous green ghost from Ghostbusters (1984), a Class 5 full-roaming vapor and the first ghost captured; named in the 1986 Real Ghostbusters cartoon and inspired by John Belushi.

SlimPajama

SlimPajama is a 627-billion-token cleaned and deduplicated English pretraining corpus for large language models, created by Cerebras in 2023 by filtering the 1.21-trillion-token RedPajama dataset and released under Apache 2.0.

Sling (weapon)

A sling is an ancient projectile weapon with a cord and pouch that launches stones or lead bullets, used for hunting, herding, and war since the Neolithic.

Sling bag

A sling bag is a compact bag worn on a single strap across the body, designed to swing from back to chest for quick access to its contents.

Sling Blade

Sling Blade is a 1996 Miramax drama written, directed by, and starring Billy Bob Thornton as Karl Childers, adapted from his stage play and the 1993 short Some Folks Call It a Sling Blade; it won Thornton the Best Adapted Screenplay Oscar.

Sling procedure

The sling procedure is a surgery for stress urinary incontinence in women that places a tension-free polypropylene mesh band under the midurethra; about 80% of women become dry, and 70% remain dry at 5 years.

Sling surgery

Sling surgery is a urologic procedure that places a strip of mesh or tissue beneath the urethra to treat stress urinary incontinence in women, often combined with prolapse repair.

Sling TV

Sling TV is DISH Network's live over-the-top TV streaming service, launched nationwide February 9, 2015 at $20/month. Known for low-cost customizable plans (Orange, Blue, Essentials), 50-hour cloud DVR, and missing CBS/local channels in some markets.

Slingsby Aviation

Slingsby Aviation, originally Slingsby Sailplanes, was a British aircraft manufacturer at Kirkbymoorside, North Yorkshire, best known for wooden training gliders from the 1930s and the T.67 Firefly military trainer.

Slingsby Hengist

The Slingsby Hengist was a British wooden troop-carrying military glider of the Second World War, of which eighteen were built, fourteen serving with the Royal Air Force.

Slingsby T.21

The Slingsby T.21, known in RAF service as the Sedbergh TX Mk.1, is a British two-seat, open-cockpit training glider first flown in 1944 that trained Air Training Corps cadets until the mid-1980s.

Slingshot

A slingshot, also called a wrist rocket or gulel, is a hand-held projectile launcher whose stretched elastic bands propel a small projectile from a Y-shaped frame.

Slinky

Slinky: helical spring toy invented 1943 by Richard T. James, named by Betty James; walks down stairs, sold over 300 million, National Toy Hall of Fame 2000, physics wave demo.

Slint

Slint: Louisville, Kentucky rock band formed 1986 (McMahan, Pajo, Walford, Buckler/Brashear), also called a post-rock progenitor. Albums Tweez (1989) and Spiderland (1991, Touch and Go); broke up before Spiderland's release, reunited 2005.

Sep 19, 2026

Slintel

Slintel was a B2B sales and marketing intelligence company founded by Deepak Anchala and Rahul Bhattacharya that sold technographic data and buying-intent signals before its 2021 acquisition by 6sense.

Sliotar

Sliotar: the leather-covered ball of hurling and camogie, 69–72 mm and 110–116 g under GAA Rule 4.4, now fluorescent yellow (Pantone 388), with chipped Smart Sliotars used in inter-county games.

Oct 3, 2026

Slip

Slip is a 2023 seven-episode Roku Channel comedy-drama written, directed by, and starring Zoe Lister-Jones, in which Mae Cannon slips into parallel universes, each married to a different partner, after a one-night stand.

Slip (aerodynamics)

A slip, also called a side slip, is uncoordinated flight in which the airplane moves somewhat sideways through the air; pilots use it to lose altitude or counter crosswinds.

Slip (materials science)

Slip is the dominant mechanism of plastic deformation in crystalline materials, carried by dislocations sliding atom planes along specific slip systems and causing work hardening.

Slip casting

Slip casting is a ceramic forming method in which a water-based clay slurry is poured into a porous plaster mold that absorbs the liquid, leaving a solid cast layer.

Slip detection

Slip detection is the recognition by a robotic or prosthetic gripper that a grasped object is moving, so grip force can be adjusted before it drops.

Slip flow

Slip flow is fluid flow where the fluid has a finite velocity at a solid boundary, replacing the no-slip condition; in rarefied gases it applies at Knudsen numbers between 0.01 and 0.1.

Slip forming

Slip forming, also called slipforming or sliding formwork, is a concrete construction method in which continuously moving formwork produces joint-free structures such as towers, chimneys, silos, and bridge pylons.

Slip length

Slip length is the length parameter in the Navier slip boundary condition, introduced by Claude-Louis Navier in 1823, describing how a fluid slips along a solid surface.

Slip of the Tongue

Slip of the Tongue is the eighth studio album by British hard rock band Whitesnake, released in November 1989 and peaking at number 10 on the UK and US charts.