1. (pathology) injury to muscles and tendons caused by continuous repetitive use of particular muscles, especially by using a keyboard, or working on an assembly line
   - repetitive strain injury

Encyclopedia: RSI

• usefully
• usefulness
• useless
• uselessly
• uselessness
• Usenet
• user
• user interface
• user-friendliness
• user-friendly
• username
• Ushas
• usher
• usher in
• usher out
• usherette
• ushering in
• using
• using up
• Uskub
• USMC
• USN
• Usnea
• Usnea barbata
• Usneaceae