Peculiar to a people or nation, or to the residents of a particular locality: chiefly applied to diseases.In phytogeography and zoögeog., peculiar to and characteristic of a locality or region, as a plant or an animal; indigenous or autochthonous in some region, and not elsewhere.n. A prevalence of endemic disease.In phytogeography, properly, confined to a particular region, whether indigenous or not: sometimes confused with indigenous.