tufa /tooˈfə, tūˈfə/

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

• pronuclei
• pronucleus
• pronunciamento
• pronunciamentoes
• pronunciamentos
• pronunciation
• pronunciations
• pronuncio
• pronuncios
• proo
• prooemion
• prooemium
• pro-oestrus
• proof
• proof before letters
• proof-charge
• proof-charges
• proof coin
• proof-correct
• proof-corrected
• proof-correcting
• proof correction
• proof-corrects
• proofed
• proof-house