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).
Spiral CAT scan
A conventional computerized axial tomography scan (CAT scan or CT scan) is an x-ray procedure which combines many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the…
Read the definitionRandom terms
Show more- Ramsay Hunt syndrome Ramsay Hunt syndrome: A herpes virus infection of the geniculate nerve ganglion that causes paralysis of the…
- Brachytherapy, coronary artery A slow heart rate, usually defined as less than 60 beats per minute. The word bradycardia is logically…
- Hemorrhage, subarachnoid Bleeding within the head into the space between two membranes that surround the brain. The bleeding is…
- Foramen, interventricular An opening between the lateral and third ventricles in a system of four communicating cavities within the…
- Hysterectomy, subtotal The uterus is surgically removed but the cervix is left is left in place. Also called a partial hysterectomy
- Tenesmus Straining, especially long-continued, ineffectual and painful straining, at stool or in urination. Straining…
- Shunt, Spitz-Holter See Spitz-Holter valve
- Alpha blocker A drug that blocks receptors in arteries and smooth muscle. This action relaxes the blood vessels and leads…
- Ricker syndrome A disease of infants and children that disturbs normal bone formation (ossification). Rickets is a failure to…
- Gray syndrome See: Gray baby syndrome
- Stachybotrys An antigenic green-black mold that grows on wood, paper and cotton products provided there is constant…
- Cysticercus The larval form of any of the Taenia tapeworms. The plural is cysticerci. Infection with cysticerci is…