any load that is difficult to carry
one of a pair of heavy flat disk-shaped stones that are rotated against one another to grind the grain
A large round stone used for grinding grain.
A nuclear power station near Waterford, Connecticut, USA.
The word "millstone" comes from Middle English and Old English, originally combining the words for "mill" and "stone." It is related to similar terms in various Germanic languages like Danish, Dutch, and German.