1. Shale that is rich in humic acids

Type of: humate, shale

• property-owning
• propertyless
• prophase
• prophecy
• prophesier
• prophesy
• prophet
• prophetess
• prophetic
• prophetical
• prophetically
• Prophets
• prophylactic
• prophylactic device
• prophylaxis
• prophyll
• propinquity
• propionaldehyde
• propionic acid
• propitiate
• propitiation
• propitiative
• propitiator
• propitiatory
• propitious