MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Myocardial infarction
A heart attack. Abbreviated MI. The term 'myocardial infarction' focuses on the myocardium (the heart muscle) and the changes that occur in it due to the sudden deprivation of circulating blood. The main change is necrosis (death) of…
Read the definitionRandom terms
Show more- Cholecystogram, oral See: Oral cholecystogram
- Bullous Characterized by blistering, such as in a second-degree burn. Bullous is the adjective for bulla. A bulla is…
- Restenosis Renarrowing, as in restenosis of a coronary artery after angioplasty. From the Greek 'stenos' meaning narrow
- Breast augmentation Breast augmentation: Enlargement of the breasts. Augmentation of the breast typically consists of insertion…
- Hexadactyly The presence of an extra digit, a sixth finger or toe, which is a very common congenital malformation (birth…
- Hypocapnia Less than the normal level of carbon dioxide in the blood. Hypoapnia is the opposite of hypercapnia. The…
- Muscle, papillary Small muscles within the heart that anchor the heart valves. The anchor ropes are the chordae tendineae…
- Protease inhibitor One of a class of anti-HIV drugs designed to inhibit the enzyme protease and thereby interfere with virus…
- Speculum, ear An instrument inserted into the auditory canal of the ear to increase the circumference of the tunnel-shaped…
- Inversion, pericentric chromosome A basic type of chromosome rearrangement in which a segment that includes the centromere (and so is…
- Congenital arthrogryposis Nonprogressive congenital contractures that develop before birth and are evident at birth (congenital). The…
- Intercurrent disease A disease that intervenes during the course of another disease. A patient with AIDS may develop an…