Entry 1 sense Webster, 1913 Taxonomic /(tăks`ŏ*nŏm"ĭk)/ · Tax·o·nom·ic · IPA /ˌtæksəˈnɒmɪk/ 01 a. Pertaining to, or involving, taxonomy, or the laws and principles of classification; classificatory. 1. Pertaining to, or involving, taxonomy, or the laws and principles of classification; classificatory.