cidaris /sidˈə-ris/

1. A Persian royal tiara
2. (with cap) a genus of sea urchins, mostly fossil

• floruits
• flory
• Floréal
• floscular
• floscule
• floscules
• flosculous
• flosh
• floss
• flossed
• flosses
• flossier
• flossiest
• flossing
• flossings
• floss silk
• flossy
• flota
• flotage
• flotages
• flotant
• flotas
• flotation
• flotations
• flotation tank