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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Syndrome, Conn
Overproduction of the hormone aldosterone (pronounced al-do-ster-one) by a tumor that contains tissue resembling that normally present in the outer portion (cortex) of the adrenal gland. The excess aldosterone results in a potassium level…
Read the definitionRandom terms
Show more- Gulf War syndrome A highly controversial syndrome involving a constellation of illnesses experienced by 5,000 to 80,000…
- Fever, valley A disease also called coccidioidomycosis (CM) due to a fungus called Coccidioides immitis. About 40% of…
- T-4 cell A type of T cell that has CD4 markers on its surface and participates in the immune response by recognizing…
- Cirrhosis Cirrhosis: An abnormal liver condition characterized by irreversible scarring of the liver. Alcohol and viral…
- Vertebral arch A circle of bone around the canal through which the spinal cord passes. A vertebral arch is composed of a…
- Alpha blocker A drug that blocks receptors in arteries and smooth muscle. This action relaxes the blood vessels and leads…
- Expectoration A big polysyllabic word for sputum or the act of bringing up and spitting out sputum. From the Latin…
- Fingerprint 1. The characteristic dermal ridges on the finger. This is the original meaning of fingerprint. 2. The…
- Intraoral Within the mouth
- Disorder, mathematics A condition characterized by math skills that are significantly below normal, given the person's age…
- Jogger's nails Very small semi-circular white spots on the nails. These spots may be found on the fingernails and…
- Pouch, rectovaginal An extension of the peritoneal cavity between the rectum and back wall of the uterus. The term 'cul-de-sac,'…