Entry 1 sense Webster, 1913 Zoological /zo͞olˌ-äj'-ĭk-əl/ · Zo·o·log·ic·al · IPA /zoʊəˈlɑd͡ʒɪkl̩/ 01 a. Of or pertaining to Zoology, or the science of animals. 1. Of or pertaining to Zoology, or the science of animals.