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Spray deposition
Spray deposition is a thin-film coating method that atomizes a liquid precursor into droplets and deposits them as a solid film at atmospheric pressure, without vacuum.
Spray pyrolysis
Spray pyrolysis, also called the spray pyrolysis technique, is an inexpensive deposition method that converts sprayed precursor droplets into thin films and powders on heated substrates.
Spread spectrum
Spread spectrum, also called spread spectrum communication, is a family of telecommunications techniques that transmit a signal over bandwidth much wider than the information needs, mainly by direct sequence or frequency hopping.
Spreadsheet
A spreadsheet is a computer application that organizes data in a grid of cells holding numbers, text, or formulas; Microsoft Excel remains the market leader as of 2025.
Spring Airlines
Spring Airlines (春秋航空) is China's first low-cost carrier, a Shanghai-based private airline that began flying in 2005 with an all-Airbus A320 fleet on domestic and Asian routes.
Spring Boot
Spring Boot is an open-source framework from the Spring team that builds stand-alone, production-grade Spring applications with minimal configuration, using embedded servers, starter dependencies, and auto-configuration.
Spring Creek Coal Mine
The Spring Creek Coal Mine is a surface coal mine in Big Horn County, Montana, owned by the Navajo Nation's NTEC since 2019 and the largest coal mine in Montana.
Spring Framework
Spring Framework, also known as Java Spring, is an open source application framework for Java enterprise applications, created by Rod Johnson and released in 2003.
Spring Gully gas field
Spring Gully is a coal seam gas field in southern central Queensland, Australia, on the Bowen Basin's western edge about 90 kilometers north of Roma, operated by Origin Energy.
Spring steel
Spring steel is a high-carbon or alloy steel heat treated to a high elastic limit, so it bends and returns to its original shape without permanent deformation.
Spring-loaded inverted pendulum
The spring-loaded inverted pendulum (SLIP) is a reduced-order model of running, hopping, and trotting in which a point mass rides on a massless spring leg, formalized by R. Blickhan in 1989.
Springerville power station
The Springerville Generating Station is a four-unit, 1,649 MW coal-fired power station in Apache County, Arizona, owned by Tucson Electric Power, Tri-State, and Salt River Project.
Springfield Armory
Springfield Armory, the United States' first federal armory, manufactured small arms for the U.S. military in Springfield, Massachusetts, from 1794 until 1968 and pioneered interchangeable-parts manufacturing.
Springfield Armory Echelon
The Springfield Armory Echelon is a modular, striker-fired 9mm semi-automatic duty pistol introduced in 2023, built around a removable serialized chassis called the Central Operating Group.
Springfield Armory M1A
The Springfield Armory M1A is a semi-automatic civilian rifle produced since 1974 by Springfield Armory, Inc. of Geneseo, Illinois, as a commercial version of the M14.
Springfield Armory, Inc.
Springfield Armory, Inc. is an American firearms manufacturer based in Geneseo, Illinois, founded in 1974 and known for the M1A rifle, XD pistols, and SAINT AR-15s.
Springfield Model 1861
The Springfield Model 1861 was a .58-caliber muzzle-loading percussion rifle musket, the most common Union infantry weapon of the American Civil War, with about one million made.
Springfield model 1873
The Springfield model 1873, nicknamed the Trapdoor Springfield, was the U.S. Army's standard single-shot breech-loading rifle and carbine of the 1870s and 1880s, chambered in .45-70.
Springfield Model 1892–99
The Springfield Model 1892–99 is the family of US Army service rifles and carbines built around the Norwegian Krag–Jørgensen bolt action, adopted in 1892 and produced chiefly at Springfield Armory until 1903.
Springfield rifle
The Springfield rifle, formally the M1903, was the standard bolt-action service rifle of the U.S. Army from 1903 to 1936, serving again through World War II and Korea.
Springfields Fuels
Springfields Fuels Limited operates the Springfields nuclear fuel plant at Salwick near Preston, Lancashire, producing uranium hexafluoride and finished fuel for reactors in the UK and overseas.
Sprinklr
Sprinklr is an American software company founded in 2009 by Ragy Thomas and headquartered in New York City, selling a unified platform for customer service, social media, and marketing.
Sprint Corporation
Sprint Corporation, also known as Sprint Nextel, was an American wireless and wireline telecommunications company headquartered in Overland Park, Kansas, until its 2020 merger with T-Mobile US.
Sprint Z3
The Sprint Z3 is a 3-PRS parallel kinematic machining head with two rotational and one translational axis, developed by DS-Technologie in 1999 for machining aluminum aircraft structures.
Sprite (computer graphics)
A sprite, also called an image sprite, is a two-dimensional bitmap that can be positioned and moved independently within a larger scene, most often in 2D video games.
Sprocket
A sprocket is a toothed wheel that meshes with a chain or toothed belt to transmit rotary power through positive engagement, without slipping, in bicycles, conveyors, and industrial drives.
Sprout Social
Sprout Social is a Chicago-based software company, founded in 2010 and public on Nasdaq since 2019, selling a social media management platform for publishing, engagement, analytics, and customer care.
Spruance-class destroyer
The Spruance class was a class of 31 United States Navy destroyers of the 1970s, built primarily for anti-submarine warfare and named for Admiral Raymond Spruance.
SPT Labtech
SPT Labtech is a British laboratory automation company headquartered in Melbourn, Cambridgeshire, making liquid handling, sample storage, and cryo-EM instruments such as the mosquito pipettor and chameleon.
SPT-100
The SPT-100 (Russian СПД-100, Stationary Plasma Thruster) is a 1.35 kW Hall-effect thruster built by Fakel in Kaliningrad, Russia, flown for spacecraft station-keeping since 1994.