The meaning of the Acronym SIG is...

SIG is

• Surface ImmunoGlobulin

More Meanings For SIG:

• Special Interest Group
• Signature file of Current program settings
• Signature file
• Special Interest Group
• Single Input Graphics
• Super Intelligent Geeks
• Sorority Interest Group
• Stanford In Government
• Student Interest Group
• Stern Indie Girl
• Sure Isn't Glock
• Spectrum Is Gopher
• Spectrum Is Green
• Store In Grease
• Soul Inside Of Garry

SIG is also in:

• Adults
• Chat
• Drivers
• File Extensions
• Funnies
• General
• Hardware
• Unfiled
• Universities