petrographer التعريفات والمعاني == English == === Etymology === From petro- + -grapher. === Noun === petrographer (plural petrographers) A person practicing petrography. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة petrographers petrography petrographic petrograph petrographic microscope petrographically petrographical petrographisch petrographies