empirical Syllabification: (em·pir·i·cal)Pronunciation: /emˈpirikəl/Translate empirical | into German | into Italian Definition of empirical adjective based on, concerned with, or verifiable by observation or experience rather than theory or pure logic:they provided considerable empirical evidence to support their argumentDerivatives empirically adverb empirical in other Oxford dictionaries Definition of empirical in the British & World English dictionary