retropulsion /ret-rō-pulˈshən/

1. Pushing backwards
2. A tendency to fall backwards experienced by some people with Parkinson's disease

retropulˈsive adjective

• urticated
• urticates
• urticating
• urtication
• urtications
• Uru.
• urubu
• urubus
• Uruguayan
• urus
• uruses
• urushiol
• urushiols
• urva
• urvas
• u/s
• us
• U/S
• US
• USA
• usabilities
• usability
• usable
• usableness
• usablenesses