| | Healthcare Industry | Medical Facilities What does the medical abbreviation TNF mean? TNF stands for tumor necrosis factor. It is a cytokine that plays a role in inflammation and immunity. Medical Facilities - Related Articles How to Deal with Influenza Can blood pressure be normal while having a heart attack? Difference Between COPD & Emphysema How to Estimate the Number of Calories You Use Daily Is the bone marrow located in epiphysis? The Best Weight-Loss Foods What Are the Signs & Symptoms of Endometriosis?