based on observation or experiment, not on theory
"an empirical basis for an ethical theory"
"empirical laws"
"empirical data"
"an empirical treatment of a disease about which little is known"
"empiric treatment"
A co-operative farming venture..left him with some empirical knowledge, but little understanding of horticultural principle.
出自: J. Barnes
By setting out from and terminating in an appeal to the facts, any good aesthetic theory is, indeed, empirical in method.
出自: M. H. Abrams