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).
Index, body mass (BMI)
An index that relates body weight to height. The body mass index (BMI) is obtained by dividing a person's weight in kilograms (kg) by their height in meters (m) squared. The National Institutes of Health (NIH) now defines normal weight…
Read the definitionRandom terms
Show more- Nerve, recurrent laryngeal One of the best known branches of the vagus nerve, a very long nerve that originates in the brainstem. After…
- Rubor Redness, one of the four classic signs of inflammation (together with dolor, calor, and tumor). From the…
- Ventricle, left The ventricles are the two lower chambers of the heart. The left ventricle is the chamber that receives blood…
- Prior approval See: Prior authorization
- Helmet, bicycle A well-known but often neglected device designed to protect the head of a bicyclist. Helmets decrease the…
- Orthodontics Orthodontics is the branch of dentistry that specializes in the diagnosis, prevention and treatment of dental…
- Chloroform A clear volatile liquid with a strong smell like ether, chloroform was once administered by inhalation to…
- Dermatopathy Any disease of the skin. Synonymous with dermopathy
- Vomitus Matter from the stomach that has come up into and may be ejected beyond the mouth, due to the act of…
- Munchausen syndrome (This is an alternate entry to Munchhausen syndrome with two h's in Munchhausen. Whole medical reports have…
- His-Werner disease This is a parasite (louse-borne) disease that was first recognized in the trenches of World War I and so was…
- Cyanotic Showing cyanosis (bluish discoloration of the skin and mucous membranes due to not enough oxygen in the…