bort or boart /bört/

1. Diamond fragments or dust
2. A coarse diamond or crystalline form of carbon, used industrially for cutting or as an abrasive

• octamerous
• octameter
• octameters
• Octandria
• octandrian
• octandrous
• octane
• octane number
• octane numbers
• octane rating
• octane ratings
• octanes
• octangular
• Octans
• octant
• octantal
• octants
• octapla
• octaploid
• octaploidies
• octaploids
• octaploidy
• octapodic
• octapodies
• octapody