1. Coagulation factor whose absence is associated with haemophilia B
   - factor IX

Type of: clotting factor, coagulation factor

Encyclopedia: Christmas factor

• appetizing
• appetizingness
• Appian Way
• applaud
• applaudable
• applauder
• applause
• apple
• apple aphid
• apple blight
• apple butter
• apple canker
• apple dumpling
• apple fritter
• apple geranium
• apple jelly
• apple juice
• apple maggot
• apple nut
• apple of discord
• apple of Peru
• apple orchard
• apple pie
• apple polisher
• apple rust