Related Clues:

• High-pressure system
• Nostril
• Raised area
• Dividing membrane
• Blue ___ Mountains
• A bull's may be pierced
• Raised strip
• Biological dividing wall
• Escarpment
• Nasal divider
• Wale
• Ruffles potato chip feature
• Chip feature, perhaps
• Facial wall that may be deviated
• Nasal wall