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).
Aortic arch
The second section of the aorta. The aorta first ascends, then bends, and then descends. The bend is the aortic arch. It gives off the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery. The…
Read the definitionRandom terms
Show more- Vein, jugular The jugular veins are in the neck and drain blood from the head, brain, face and neck and convey it toward…
- Blastomyces dermatitidis The fungus that causes a disease called blastomycosis
- MCP Membrane cofactor protein. A ubiquitous protein on the surface of cells that regulates complement and is…
- SCID Severe combined immunodeficiency disease
- Rale A type of abnormal lung sound heard through a stethoscope. Rales may be sibilant (whistling), dry (crackling)…
- SBCC Superficial basal cell carcinoma. A basal cell cancer of the skin that is superficial and has not infiltrated…
- Rape Rape: Forced sexual intercourse; sexual assault; sexual intercourse between an adult and a minor. Rape may be…
- Medical word origin See: Medical etymology
- Local seizure See: Partial seizure
- Voice disorder One of a group of problems involving abnormal pitch, loudness, or quality of the sounds produced by the…
- Colon syndrome, nervous A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility)…
- Smith-Lemli-Opitz syndrome A multiple congenital malformation syndrome caused by an abnormality in cholesterol metabolism, deficiency of…