1. A radioactive element of the alkali-metal group discovered as a disintegration product of actinium
   - francium, Fr

Type of: metal, metallic element

• Odoacer
• Odobenidae
• Odobenus
• Odobenus divergens
• Odobenus rosmarus
• Odocoileus
• Odocoileus hemionus
• Odocoileus hemionus columbianus
• Odocoileus Virginianus
• odometer
• Odonata
• odonate
• odontalgia
• Odontaspididae
• Odontaspis
• Odontaspis taurus
• odontiasis
• odontoblast
• Odontoceti
• odontoglossum
• odontoid
• odontoid process
• odontology
• Odontophorus
• odor