tufa /tooˈfə, tūˈfə/

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

tufāˈceous adjective

• retunds
• retune
• retuned
• retunes
• retuning
• returf
• returfed
• returfing
• returfs
• re-turn
• return
• returnable
• return crease
• re-turned
• returned
• returnee
• returnees
• returner
• returners
• returnik
• returniks
• re-turning
• returning
• returning officer
• returning officers