1. An enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot
   - thromboplastin, thrombokinase

Type of: clotting factor, coagulation factor

• FTO
• FTP
• FTSE index
• FUBAR
• fubsy
• Fucaceae
• Fucales
• Fuchs
• fuchsia
• Fuchsia coccinea
• Fuchsia excorticata
• fuchsin
• fuchsine
• fuck
• fuck all
• fuck off
• fucked-up
• fucker
• fuckhead
• fucking
• fucking hell
• fuckup
• fuckwit
• fucoid
• fucoid algae