xe·no·ge·ne·ic \¦ ̷ ̷ ̷ ̷ jə̇¦nēik\adjective alsoxe·no·gen·ic\¦ ̷ ̷ ̷ ̷ ¦jenik\ Etymology:xen- + -geneic (as in syngeneic — herein) or -genic : derived from, originating in, or being a member of another species < a xenogeneic antibody > < xenogeneic hosts > — compare allogeneic herein syngeneic herein