1. Being where earthquake waves arrive simultaneously
   - coseismic

See also: unstable

• Rocky mountain pinon
• Rocky Mountain sheep
• Rocky Mountain spotted fever
• Rocky Mountain whitefish
• Rocky Mountains
• Rocky Mountains cherry
• Rocky-mountain maple
• rococo
• Rocroi
• rod
• rod cell
• Rod Laver
• rod-shaped
• rodent
• Rodentia
• rodenticide
• rodeo
• rodeo rider
• Rodgers
• Rodhos
• Rodin
• rodlike
• rodman
• Rodney George Laver
• Rodolia