"empirical" - key terms from Wikipedia

empirical
empirical	analysis
empirical	concepts
empirical	cycle
empirical	data
empirical	definition
empirical	evidence
empirical	facticity
empirical	formula
empirical	influence function
empirical	mean
empirical	measurement
empirical	methods
empirical	potentials
empirical	research
empirical	risk minimization
empirical	self
empirical	studies
logic empirical