Entry 2 senses Webster, 1913 Excentric · Ex·cen·tric · IPA /ɛkˈsɛn.tɹɪk/ 01 a. Same as Eccentric, Eccentrical. 1. Same as Eccentric, Eccentrical. See: Eccentric, Eccentrical 2. One-sided; having the normally central portion not in the true center.(Bot.)