MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
CAT scan, spiral
A conventional computerized axial tomography scan (CAT scan or CT scan) is an x-ray procedure which combines many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the…
Read the definitionRandom terms
Show more- Ketone A chemical substances that the body makes when it does not have enough insulin in the blood. When ketones…
- Acute renal failure Sudden and often temporary loss of kidney function. Also called acute kidney failure. As opposed to chronic…
- Dolor 1. Pain, one of the four classic signs of inflammation (together with calor, rubor and tumor). 2. By…
- Neurological Disorders and Stroke, Nat'l Institut Of (NINDS): One of the National Institutes of Health in the U.S., the NINDS's mission is to 'support and…
- Disease, Behcet's See: Behcet's syndrome
- Sick building syndrome Sick building syndrome: A condition caused by exposure to various noxious agents that affect persons employed…
- Catheter, central A catheter (a tube) that is passed through a vein to end up in the thoracic (chest) portion of the vena cava…
- Tag, preauricular A common minor anomaly, this is a rudimentary tag of ear tissue. It often contains a core of cartilage. The…
- Abortion, habitual The miscarriage of 3 or more consecutive pregnancies. The abortion of 3 or more miscarriages (spontaneous…
- Snake antivenin Antibodies created in the blood of a horse or sheep when the animal is injected with snake venom. Antivenin…
- Ulcer, esophageal A hole in the lining of the esophagus (tube-like organ leading from the throat to the stomach) corroded by…
- Photodynamic therapy Photodynamic therapy: A form of cancer treatment using an photosensitizing agent administered intravenously…