noun: (aviation) Initialism of supersonic transport.
noun: (biochemistry) Abbreviation of somatostatin. [(biochemistry) A cyclopeptide hormone, secreted by the pancreas, that inhibits the production of certain other hormones]
noun: (meteorology) Initialism of sea surface temperature.
noun: (computing) Initialism of Shiva Smart Tunneling.
noun: (space science, US, NASA) Initialism of Spitzer Space Telescope.