(dated) The mistress of a castle or large household.

(chemistry) A principle stating that, if a chemical system at equilibrium experiences a change in concentration, temperature, or total pressure, the equilibrium will shift in order to minimize that change.

plural of chatelaine

The keeper or master of a castle; a castellan.

plural of chatelain

plural of chatelet

(obsolete) A little castle.

plural of chatellany

Alternative form of castellany

A surname.