Entry 1 sense Webster, 1913 Xenogenetic · Xen·o·ge·net·ic · IPA /zɛ.nəʊ.d͡ʒəˈnɛ.tɪk/ 01 a. Of or pertaining to xenogenesis; as, the xenogenetic origin of microzymes. 1. Of or pertaining to xenogenesis; as, the xenogenetic origin of microzymes.(Biol.)