FSOS

AcronymDefinition
FSOSFree-Space Optical System
FSOSFriendly Sons of the Shillelagh (New Jersey)
FSOSFifty Shades of Sexy
FSOSFood Service Operating Supplies
FSOSFamily Support Orders Service (Canada)
FSOSFuture Sounds of Swing
FSOSFor the Sake of the Salmon (est. 1995)
FSOSFalse Sense of Security (Exies song title)
FSOSFunctional Significance of Stereopsis (medicine)
FSOSFree Standing Operating System
FSOSFlight Support Operations and Services