biogerontologist التعريفات والمعاني == English == === Etymology === From biogerontology + -ist. === Noun === biogerontologist (plural biogerontologists) A physician who specializes in biogerontology. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة biogerontologists biogerontologia biogerontologi biogerontological biogerontologic