WordWeb Online

1. Put into the required condition beforehand

1. An assumption on which rests the validity or effect of something else
   - condition, stipulation
    
2. An assumption that is taken for granted
   - given, presumption
    
3. A condition that is a prerequisite

Derived forms: preconditioning, preconditions, preconditioned

Type of: assumption, fix, gear up, premise, premiss, prepare, prerequisite, ready, requirement, set, set up, supposal, supposition

Encyclopedia: Precondition