al·lo·ge·ne·ic \¦aləjə̇¦nēik, -lō-\adjective alsoal·lo·gen·ic\-¦jenik\ Etymology:allogeneic from all- + -geneic (as in syngeneic — herein); allogenic from all- + -genic : involving, derived from, or being individuals of the same species that are sufficiently unlike genetically to interact antigenically < allogeneic skin grafts > < allogeneic donors > — compare syngeneic herein xenogeneic herein