orthotropia التعريفات والمعاني == English == === Etymology === From ortho- + -tropia. === Noun === orthotropia (uncountable) The normal absence of heterotropia. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة orthotropic orthotropics orthotropous orthotrope orthotropes orthotrop orthotrophy orthotopic orthotropy