What Does FIRST Stand For?

FIRST has more than one possible meaning :

• FIRST - Faint Images Of The Radio Sky At Twenty Centimeters
• FIRST - Far Infrared And Submillimetre Space Telescope
• FIRST - FDA Information Retrieval System
• FIRST - Field Portable Imaging Radiometric Spectrometer Technology

If you know of another acronym for FIRST, please suggest it as a new acronym for FIRST.