1. Ore that yields a substantial profit to the miner 
2. A profitable success
   "the inventor worked for years before hitting pay dirt"

Type of: ore, success

• pericardial cavity
• pericardial sac
• pericardial space
• pericardial vein
• pericarditis
• pericardium
• pericarp
• pericementoclasia
• pericenter
• pericentre
• perichondrium
• periclase
• Pericles
• periclinal
• pericope
• pericranium
• periderm
• peridinian
• Peridiniidae
• Peridinium
• peridium
• peridot
• peridotite
• perigee
• periglacial