WordWeb Online

1. (figurative) something that hinders or handicaps
   "she was a millstone around his neck";
   - albatross
    
2. Any load that is difficult to carry
    
3. One of a pair of heavy flat disk-shaped stones that are rotated against one another to grind the grain

Derived forms: millstones

Type of: balk, baulk [Brit], burden, check, deterrent, handicap, hinderance, hindrance, impediment, load, loading, stone

Part of: gristmill

Encyclopedia: Millstone, NJ