The meaning of the Acronym PSS is...

PSS is

• Portable Spacecraft Simulator
• Propulsion Support System
• Propellant Supply Subsystem
• Payload Support System
• Payload Specialist Station
• Pad Safety Supervisor

More Meanings For PSS:

• Personal Sound Studio
• Practical Salinity Scale
• Problem for Self Study
• Physician Sales and Service
• Public Sector Solutions
• PenStar Systems, L. L. C.
• Payless ShoeSource, Inc.
• Professional Selling Skills
• Private School Supporter
• Play Sound Shell
• Pistol Subgun Shotgun
• Police Sniper Special
• Packet Switch Stream
• Pyramid Spiritual Societies
• Product Support Services

PSS is also in:

• Drivers
• Educational
• Electronics
• Firms
• Law
• Media
• Non-Profit Organizations
• NYSE Symbols
• Ocean Science
• Positions
• Universities