The meaning of the Acronym YS is...

YS is

• Yolk Sac

More Meanings For YS:

• You Suck
• Yamaki Sigma
• Yield Strength
• You Suck
• Yolk Sac
• Yolk Sac
• Yakult Swallows
• Yolk Sac
• Young Slacker
• Yield Strength
• Y-Axis of Solid Rocket Booster
• Youth Symphony
• Young Stars
• Youngstown and Southern Railway Company

YS is also in:

• Adults
• Chat
• Human Genome
• Laboratory
• Mathematics
• Military
• Music
• NASA
• Performing Arts
• Physics
• Railroads
• Veterinary