noun تحميل 🔗مشاركة ظهارة A membranous tissue composed of one or more layers of cells which forms the covering of most internal and external surfaces of the body and its organs: internally including the lining of vessels and other small cavities, and externally being the skin. Examples : "The doctor examined the tissue sample to see if the epithelium was healthy. " فحص الطبيب عينة الأنسجة ليرى ما إذا كانت الظهارة صحية. medicine physiology anatomy organ body biology science دردشة مع الذكاء الاصطناعيلعبة المفرداتتدريب القراءة