fraternal /frə-tûrˈnl/

1. Belonging to a brother or brethren
2. Brotherly
3. (of twins) dizygotic, not identical

• osteoporotic
• osteosarcoma
• osteosarcomas
• osteosarcomata
• osteotome
• osteotomes
• osteotomies
• osteotomy
• ostia
• Ostiak
• ostial
• ostiaries
• ostiary
• ostiate
• ostinato
• ostinatos
• ostiolate
• ostiole
• ostioles
• ostium
• OStJ
• ostler
• ostleress
• ostlers
• Ostmark