meerschaum /mērˈshəm or -showm/

1. A fine light whitish clay, sepiolite, once supposed to be a petrified sea-scum
2. A tobacco pipe made of it

• fatherless
• fatherlessness
• fatherlessnesses
• fatherlike
• fatherliness
• fatherlinesses
• fatherly
• father of the chapel
• Father of the faithful
• fathers
• Father's Day
• fathership
• fatherships
• fathers-in-law
• fathom
• fathomable
• fathomed
• fathometer
• fathometers
• fathoming
• fathomless
• fathom line
• fathom lines
• fathoms
• fatidical