- (n): the procedure that is varied in order to estimate a variable''s effect by comparison with a control condition
- (n): information that should be kept in mind when making a decision; "another consideration is the time it would take"
- (n): an assumption on which rests the validity or effect of something else
- (n): (usually plural) a statement of what is required as part of an agreement; "the contract set out the conditions of the lease"; "the terms of the treaty were generous"
- (n): a mode of being or form of existence of a person or thing; "the human condition"
- (n): a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations"
- (n): the state of (good) health (especially in the phrases `in condition'' or `in shape'' or `out of condition'' or `out of shape'')
- (v): apply conditioner to in order to make smooth and shiny; "I condition my hair after washing it"
- (v): put into a better state; "he conditions old cars"
- (v): specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement; "The will stipulates that she can live in the house for the rest of her life"; "The contract stipulates the dates of the payments"
- (v): train by instruction and practice; especially to teach self-control; "Parents must discipline their children"; "Is this dog trained?"
- (v): establish a conditioned response