tufa /tooˈfə, tūˈfə/

1. Calc-sinter (often calcareous tufa)
2. Tuff or other porous rock (obsolete)

• flicking
• flick-knife
• flick-knives
• flicks
• flick through
• flics
• flier
• fliers
• flies
• fliest
• flight
• flight attendant
• flight attendants
• flight bag
• flight bags
• flight crew
• flight crews
• flight data recorder
• flight deck
• flight decks
• flighted
• flight engineer
• flight engineers
• flight envelope
• flight-feather