tufa /tooˈfə, tūˈfə/

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

tufāˈceous adjective

• penalty killer
• penalty killers
• penalty line
• penalty lines
• penalty rate
• penalty rates
• penalty shoot-out
• penalty shoot-outs
• penalty shot
• penalty shots
• penalty spot
• penalty spots
• penalty tries
• penalty try
• penance
• penanced
• penances
• penancing
• pen-and-ink
• Penang-lawyer
• penannular
• penates
• pen-case
• pen-cases
• pence