retropulsion /ret-rō-pulˈshən/

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

retropulˈsive adjective

• airgaps
• air-gas
• airglow
• airglows
• airgraph
• airgraphs
• air-grating
• air-gratings
• air guitar
• air guitars
• airgun
• airhead
• airheads
• air hockey
• airhole
• airholes
• air hostess
• air hostesses
• air-house
• air-houses
• airier
• airiest
• airily
• airiness
• airinesses