Sm

Sm
Samarium relatively stable element in dry air but oxidises on contact with moisture.
Small Circle
The circle formed by the intersection of a sphere and a plane that doesn't contain the centre of the sphere.
Small Computer Serial Interface
An interface controller that allows several peripherals to be connected to the same port on a computer.
Smartmedia Flash Memory Card
Flash memory storage used in digital cameras.
Smell
Human can detect around 1 trillion different smells.
Smog
A visible haze caused primarily by particulate matter and ozone.
Smoke Damper
A damper or adjustable louver designed to augment the ventilation of a space during a fire.
Smoke Developed
Measure of smoke density developed by a material when compared with red oak, which has a smoke density index of 100 in accordance with ASTM E 84.
Smokebox
An enclosed space at the extremity of a fire-tube boiler, where the exhaust gases from the tubes are combined together and pass to the flue or chimney.
Smooth Plane
A general purpose wood plane, often used after the jack plane for final polishing.
Smoothing
Smoothing techniques are used to reduce irregularities in time series data.
SMTP
Abbreviation of Simple Mail Transfer Protocol.