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).
Bag, air
A bag that fills with air, designed for frontal impact crashes, the kind of crashes which account for more than half of all passenger vehicle occupant deaths. Air bags are designed to limit head and chest injuries. But they only supplement…
Read the definitionRandom terms
Show more- Heterochromatin, constitutive Heterochromatin that is fixed and irreversible. Regions of constitutive heterochromatin are located at very…
- Yoga A way of life that includes ethical precepts, dietary prescriptions, and physical exercise. Its practitioners…
- Traction, orthopedic The use of a system of weights and pulleys to gradually change the position of a bone. It may be used in…
- Retinal detachment Retinal detachment: A separation of the retina from its connection at the back of the eye. The separation…
- Antiretroviral An agent or process effective against a retrovirus. For example, a drug to treat HIV
- Syndrome X See: Metabolic syndrome
- Linkage map A map of the genes on a chromosome based on linkage analysis. A linkage map does not show the physical…
- Primary First or foremost in time or development. The primary teeth (the baby teeth) are those that come first…
- Neuralgia, sphenopalatine A distinctive syndrome of headaches, better known today as cluster headache. There are two main clinical…
- Ounce A measure of weight equal to 1/16th of a pound or, metrically, 28.35 grams. The abbreviation for ounce is oz…
- Tay-Sachs disease A genetic metabolic disorder caused by deficiency of the enzyme hexosaminidase A (hex-A) that results in a…
- Hippophobia An abnormal and persistent fear of horses. Sufferers of this fear experience undue anxiety even when a horse…