1. A style of rock and roll music, typically with heavy use of electric guitars, bass guitar and drums

Encyclopedia: Hard rock

• rondavel
• rondeau
• rondel
• rondelet
• rondo
• rondure
• roneo
• Roneograph
• rongeur
• ronin
• roo
• rood
• rood screen
• rood-tree
• roof
• roof garden
• roof mushroom
• roof of the mouth
• roof peak
• roof rack
• roof rat
• roofed
• roofer
• roofing
• roofing material