1. Of, pertaining to, or in the region of, the petrous, or petrosal, bone, or the corresponding part of the temporal bone

Encyclopedia: Petrosal

• ruminator
• rummage
• rummage sale
• rummer
• rummy
• Rumohra
• Rumohra adiantiformis
• rumor
• rumormonger
• rumour
• rumourmonger
• rump
• rump roast
• rump steak
• Rumpelstiltskin
• rumple
• rumpled
• rumply
• rumpus
• rumpus room
• rumrunner
• run
• run a risk
• Solanum melongena
• Solanum nigrum