1. A white or colourless mineral (BaSO4); the main source of barium
   - heavy spar, barite, barium sulphate

Type of: mineral

Encyclopedia: Barytes

• triennially
• triennium
• trier
• trifecta
• trifid
• trifid beggar-ticks
• trifid bur marigold
• trifle
• trifle away
• trifler
• trifling
• trifluoromethane
• trifocal
• trifoliata
• trifoliate
• trifoliate orange
• trifoliated
• trifoliolate
• trifoliolate leaf
• Trifolium
• Trifolium alpinum
• Trifolium dubium
• Trifolium incarnatum
• Trifolium pratense
• Trifolium reflexum