1. A native double salt, consisting of a combination of neutral and acid sodium carbonate, occurring as a white crystalline fibrous deposit from certain soda brine springs and lakes
   - trona

Encyclopedia: Urao

• water plant
• water plantain
• water pollution
• water polo
• water pore
• water program
• water project
• water pump
• water rat
• water right
• water sapphire
• water scooter
• water scorpion
• water shamrock
• water shrew
• water skater
• water ski
• water snake
• water softener
• water spaniel
• water speedwell
• water spirit
• water sport
• water sprite
• water star grass