Also known as: SM., SM-
SM has various meanings in the Governmental & Military category. Discover the full forms, definitions, and usage contexts of SM in Governmental & Military.
A non-SI unit of length equalling 1.609 kilometres \nExample: It is 20 statute miles to the airport.
Governmental & MilitaryThe Standard Model of particle physics is a theory concerning the electromagnetic, weak, and strong nuclear interactions, as well as classifying all the subatomic particles known. It was developed throughout the latter half of the 20th century, as a collaborative effort of scientists around the world.
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