Entry 2 senses Webster, 1913 anoxic /(ăn*ŏks"ĭk)/ · an·ox·ic · IPA /ˌæˈnɑːk.sɪk/ 01 adj. Of, pertaining to, or suffering from, anoxia. 1. Of, pertaining to, or suffering from, anoxia.(Med.) 2. Greatly deficient in, or totally lacking, oxygen.