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).
Bicycle helmet
A well-known but often neglected device designed to protect the head of a bicyclist. Helmets decrease the risk of head injuries (traumatic brain damage) by about 85%. However, only about 18% of bicyclists in the US use helmets all or most…
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Show more- Whipworm A nematode (roundworm) also called Trichuris trichiura. The third most common round worm of humans. The worm…
- Sarcoma, Ewing Sarcoma, Ewing: A type of bone tumor that occurs in children and adolescents, most often in the large bones…
- Nosebleed, causes of The nose is a part of the body that is very rich in blood vessels (vascular) and is situated in a vulnerable…
- Hypnic jerk The common normal phenomenon of jerking awake, usually accompanied by a feeling of falling, just as one is…
- Induration Induration: Localized hardening of soft tissue of the body. The area becomes firm, but not as hard as bone
- Pressor Causing a rise in blood pressure. A pressor base is a substance (chemically classified as a base) capable of…
- CCK Cholecystokinin
- Thyroid cartilage The largest of the cartilages of the larynx (the voice box). The thyroid cartilage is formed of two…
- Hearing loss, age-related See: Presbycusis
- Yellow fever An acute systemic (bodywide) illness caused by a virus called a Flavivirus. In severe cases, the viral…
- Septum, cardiac The cardiac septum is the dividing wall between the right and left sides of the heart. That portion of the…
- H. flu genome The total genetic complement of the bacterium Haemophilus influenzae (H. flu). This bacterial genome was the…