Science

Ultrasound Definition: An ultrasound scan is a medical test that uses high-frequency sound waves to capture live images from the inside of our body. It’s…

Pulmonary Embolism Definition: Pulmonary embolism (PE) is a thrombotic disorder. In PE, a blockage occurs in the pulmonary artery preventing blood flow to the lungs.…

Peritoneal Dialysis Definition: Peritoneal dialysis (PD) is a treatment for kidney failure that uses the lining of people’s abdomen, or belly, to filter their blood…

Myxedema Definition: Myxedema or myxoedema is another term for severely advanced hypothyroidism. This is a condition that occurs when our body doesn’t produce enough thyroid…

Atelectasis Definition: Atelectasis is a medical term used to describe the complete or partial collapse of a lung. It is sometimes referred to as a…

Nephrotic Syndrome Definition: Nephrotic syndrome is a kidney disorder that causes our body to excrete too much protein in our urine. Small blood vessels in…

Hypoproteinemia Definition: Hypoproteinemia is a condition where a person has a very low level of protein in their blood. There are several causes that all…

Cirrhosis Definition: Cirrhosis is a serious degenerative disease that occurs when healthy cells in the liver are damaged and replaced by scar tissue, usually as…

Respiratory System (Anatomy) Definition: The respiratory system (also referred to as the ventilator system) is a complex biological system comprised of several organs that facilitate…

Pulmonary Alveolus Definition: Pulmonary alveolus (plural: alveoli, from Latin alveolus, “little cavity”), informally known as air sac, is any of the innumerable minuscule, thin-walled, capillary-rich…

About Pneumonia Definition: Pneumonia is an infection in one or both lungs. It can be caused by bacteria, viruses, or fungi. Bacterial pneumonia is the…

Actinic Cheilitis Definition: Actinic cheilitis, sometimes known as “farmer’s lip” or “sailor’s lip,” is a precancerous condition related to cumulative lifetime sun exposure. Essentially it…