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).
Endometrioma
Part of the condition known as endometriosis. Endometrioma is a type of cyst formed when endometrial tissue (the mucous membrane that makes up the inner layer of the uterine wall) grows in the ovaries. It affects women during the…
Read the definitionRandom terms
Show more- Cataract, secondary A cataract that develops secondary to another disease or surgery. The other disease may, for example, be…
- Sleep-disordered breathing A condition characterized by repeated episodes of hypopnea (underbreathing) and apnea (not breathing) during…
- Primary cataract See: Cataract, primary
- Aneurysm, dissecting An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an…
- Tamponade, balloon A procedure in which a balloon is inflated within the esophagus or stomach to apply pressure on bleeding…
- Vein, central retinal The blood vessel that carries blood away from the retina of the eye. The counterpart to the central retinal…
- Adult T-cell leukemia Abbreviated ATL. A malignancy of mature T lymphocytes (T cells) with its onset in adulthood caused by…
- Kok disease A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Drugs, teratogenic A teratogen is an agent that can disturb the development of the embryo or fetus. Teratogens halt the…
- Nonmelanoma skin cancer Skin cancer that does not involve melanocytes. Basal cell cancer and squamous cell cancer are nonmelanoma…
- Claustrophobia An abnormal and persistent fear of closed spaces, of being closed in or being shut in, as in elevators…
- Papilloma, intraductal A benign, wart-like growth that occurs in breast ducts