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).
BSL-3
Biosafety level 3. A level of biosafety considered appropriate for agents that may be transmitted by the respiratory route which can cause serious infection
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Show more- Vertebrae, sacral There are 5 sacral vertebral bones. They are represented by the symbols S1 through S5 and are situated…
- Paleostriatum A pale-appearing spherical area in the brain. The paleostriatum is specifically part of what is called the…
- Empyema The presence of pus in the pleural space which is between the outer surface of the lung and the chest wall…
- Central nervous system, spongy degeneration of the Also called Canavan disease, this is a severe progressive fatal inherited (genetic) disorder of the central…
- Labial herpes Herpes: A small sore situated on the face or in the mouth that causes pain, burning, or itching before…
- Gingivitis, ulcerative This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Deficiency, FAO Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a…
- Hallux What the ancient Romans called the big toe. Since hallux was a good enough word for the big toe among the…
- High altitude Altitude sickness occurs at high altitude. So what is high altitude? Altitude is defined on the following…
- Heart attack Heart attack: The death of heart muscle due to the loss of blood supply. The loss of blood supply is usually…
- Apposition The word 'apposition' has several senses including the act of adding or accretion and also the putting of…
- RLQ Abbreviation for the right lower quadrant (quarter) of the abdomen. The RLQ of the abdomen contains the…