Definitions from Wiktionary (SLS)

▸ noun:  (space science, transport) Initialism of Space Launch System. [(transport, space science) A Shuttle-derived heavy launch vehicle being designed by NASA to replace the Space Shuttle.]
▸ noun:  (space science, transport) Initialism of Space Launcher System. [(transport, space science, historical) A 1960s-era design program of the United States Air Force.]
▸ noun:  (computing) Initialism of second-level support.
▸ noun:  Initialism of sodium lauryl sulphate.
▸ noun:  Initialism of single-leg squat.




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