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Smith Micro Software
Smith Micro Software is a Pittsburgh, Pennsylvania software company founded in 1982 that develops white-label family safety and messaging solutions sold to wireless carriers and cable operators.
Smith Mountain Lake
Smith Mountain Lake is a 20,600-acre reservoir in south-central Virginia near Roanoke, created in 1963 by damming the Roanoke River as part of Appalachian Power's pumped storage project.
Smith predictor
The Smith predictor is a model-based control structure, proposed by Otto J. M. Smith in 1957, that compensates for long dead time by feeding back a delay-free model prediction.
Smith Ranch-Highland
Smith Ranch-Highland is a uranium in situ recovery mining complex in Converse County, Wyoming, operated by Cameco Resources and the largest US uranium facility by licensed capacity.
Smithfield Street Bridge
The Smithfield Street Bridge is a steel lenticular through-truss highway bridge over the Monongahela River in Pittsburgh, designed by Gustav Lindenthal and opened in 1883, the oldest river bridge still standing in Allegheny County.
Smoke detector
A smoke detector, or smoke alarm, is a device that senses airborne smoke and sounds an alarm, giving occupants time to escape a fire. Home alarms use ionization or photoelectric detection.
Smoke screen
A smoke screen, or screening smoke, is artificially generated smoke laid over an area or force to block enemy observation or mark targets and landing zones.
Smoke signal
A smoke signal is a visual communication method in which puffs or columns of smoke convey prearranged messages within line of sight, among the oldest forms of telegraphy.
Smoke testing (software)
Smoke testing, also called build verification testing, is a fast software test of a build's most critical functions, run before deeper testing so broken builds are rejected early.
Smokebox
The smokebox is the cylindrical chamber at the front of a steam locomotive's boiler, beneath the chimney, where exhaust gases collect before leaving the stack.
Smokehouse
A smokehouse is a small outbuilding where meat or fish is preserved and flavored by smoke after curing with salt, common on farms until about 1930.
Smokeless powder
Smokeless powder is a class of nitrocellulose propellants developed in the late 19th century to replace black powder. It is manufactured in forms like flakes or grains.
Smoking Space Man
The Smoking Space Man is a Japanese tin toy robot made by Yonezawa around 1960, sold in the US as Linemar, that puffs real smoke as it walks.
Smoky gas field
The Smoky gas field is an operating natural gas field in the Alberta Deep Basin of western Canada, discovered in 1980 and producing mainly from the Montney and Spirit River formations.
Smoky quartz
Smoky quartz is the brown to black variety of quartz, its color created by natural irradiation of aluminum-bearing crystals, and is cut as a gemstone.
Smolagents
Smolagents is a lightweight open-source Python library from Hugging Face for building AI agents, launched in 2024, whose CodeAgent writes actions as executable Python code rather than JSON.
Smolen–Gulf Bridge
The Smolen–Gulf Bridge is a covered road bridge in Ashtabula County, Ohio, opened in 2008 as the longest covered bridge in the United States at 613 feet.
Smolensk nuclear power plant
The Smolensk nuclear power plant is an operating nuclear power station in Smolensk Oblast, Russia, with three RBMK-1000 reactors in service between 1982 and 1990, owned by Rosatom.
SmolLM
SmolLM is a family of small, fully open language models released by Hugging Face for on-device use, spanning three generations from July 2024 to July 2025.
SmolVLA
SmolVLA is an open-source vision-language-action model for robotics released by Hugging Face in June 2025, small enough at about 450M parameters to train on a consumer GPU.
SmolVLM
SmolVLM is a family of small, open-source vision language models developed by Hugging Face for memory-constrained on-device use, first released in November 2024 and extended to video-capable models in 2025.
Smoore International Holdings
Smoore International Holdings, founded by Chen Zhiping in Shenzhen, is a Hong Kong-listed manufacturer of vaping devices, the world's largest by revenue in 2019 with 16.5% market share.
Smoothbore
A smoothbore is a firearm or gun barrel whose bore is a plain, unrifled tube that imparts no spin, now dominant as the main gun of Western battle tanks.
Smoothed analysis
Smoothed analysis is a framework for analyzing algorithms that measures their performance on inputs perturbed by small random noise, introduced by Spielman and Teng in 2001.
Smoothed ℓ0 minimization
Smoothed ℓ0 minimization, or SL0, is an algorithm for sparse signal reconstruction proposed by Mohimani, Babaie-Zadeh, and Jutten, typically far faster than basis pursuit with equal or better accuracy.
SmoothGrad
SmoothGrad is a technique for reducing visual noise in gradient-based saliency maps of neural networks, introduced in 2017 by Daniel Smilkov, Nikhil Thorat, Been Kim, Fernanda Viégas, and Martin Wattenberg.
Smoothie King Center
The Smoothie King Center, formerly New Orleans Arena, is an indoor arena in New Orleans and home of the NBA's New Orleans Pelicans, opened in 1999.
Smoothing reactor
A smoothing reactor is a large inductor connected in series at the DC terminal of an HVDC converter station, smoothing current ripple and limiting fault current.
SmoothQuant
SmoothQuant is a training-free post-training quantization method enabling 8-bit weight and activation (W8A8) inference for large language models, introduced by MIT and NVIDIA researchers in November 2022.
SMOS (satellite)
SMOS (Soil Moisture and Ocean Salinity) is a European Space Agency Earth observation satellite launched in 2009 to measure soil moisture over land and sea surface salinity.