The meaning of the Acronym SOS is...

SOS is

• Silicon On Sapphire

More Meanings For SOS:

• Swap Operating Shell
• Start Of Significance
• Shape Originality And Style
• Simple Operating System
• Same Old Shit
• Set Out Seedlings
• Silicon On Sapphire
• Standing On Stone
• Southern Oxidant Study
• Satellite Observing System
• Students Offering Support
• Students Orienting Students
• Student Opportunities and Services
• School Of Swing
• Students Offering Services

SOS is also in:

• Assembly
• Botany
• Chat
• Electronics
• General
• Geology
• Ocean Science
• Software
• Universities