The meaning of the Acronym USL is...

USL is

• Ultra Stereo Labs, Inc.
• Unix Software Laboratory

More Meanings For USL:

• User Subprogram Library
• The University Of Slow Learners
• U S Liquids, Inc.
• Ultra Stereo Labs, Inc.
• Unix Software Laboratory
• Upper Specification Limit
• The Uniform Securities Legislation
• United Soccer Leagues
• Useless Loop, Western Australia, Australia

USL is also in:

• Airport Codes
• AMEX Symbols
• Firms
• Funnies
• General
• NYSE Symbols
• Sports