1. Either of two twins who developed from two separate fertilized eggs
   - fraternal twin

Derived forms: dizygotic twins

Type of: twin

• runic
• runic letter
• runlet
• runnel
• runner
• runner bean
• runner-up
• runner-up finish
• runniness
• running
• running away
• running back
• running blackberry
• running board
• running game
• running hand
• running head
• running headline
• running light
• running mate
• running noose
• running pine
• running play
• running pop
• running postman