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).
Abdominal aneurysm
An aneurysm situated within the abdomen (belly). An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is typically a bulge and the wall is weakened and may rupture. The word…
Read the definitionRandom terms
Show more- Chronic obstructive pulmonary disease The cedar vinegar diet is a weight loss plan based upon the consumption of one, two, or three teaspoons of…
- Atrium One of the two smaller chambers of the heart. Each atrium consists of an open space with recessed walls. The…
- Anesthetic, epidural An anesthetic injected into the epidural space surrounding the fluid-filled sac (the dura) around the spine…
- Biopsy, muscle See: Muscle biopsy
- Dystrophia brevicollis congenita See: Klippel-Feil sequence
- Vaccination Injection of a killed microbe in order to stimulate the immune system against the microbe, thereby preventing…
- Causes of cancer Cancer is a group of more than 100 different diseases. Benign tumors are not cancer; malignant tumors are…
- Genitalia The male and female reproductive organs. The genitalia include internal structures such as the ovary, and…
- Velvet ant sting Common in most parts of the world including the Southern and Southwestern United States, velvet ants are not…
- Immune complex A cluster of interlocking antigens and antibodies forming a large network of molecules. Also called an…
- Achlorhydria A lack of hydrochloric acid in the digestive juices in the stomach (in technical terms, so that the pH of the…
- Primitive neuroectodermal tumor One of a remarkable group of tumors that originate in cells from the primitive neural crest and share the…