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).
Cataract surgery
Cataract surgery: Removal of the clouded lens (the cataract) in its entirety by surgery, usually followed by replacement of the lens with an intraocular lens (IOL) made of plastic, silicone, acrylic or other material. The operation…
Read the definitionRandom terms
Show more- Shock, toxic See Syndrome, toxic shock.
- Headache, alarm clock See: Alarm clock headache
- Laryngeal stenosis Narrowing or constricting of the larynx, the voice box
- Sickle hemoglobin Hemoglobin S, the most common type of abnormal hemoglobin and the basis of both sickle cell trait and sickle…
- P53 A tumor suppressor. The designation 'p53' stands for 'protein 53 kilodaltons' in size. p53 is a specific…
- Macule A small localized change in the color of skin that is neither raised (elevated) nor depressed. Macules are…
- Thyroid hormone organification defect IIb See Pendred syndrome
- Automated white cell differential A machine-generated percentage of the different types of white blood cells, usually split into granulocytes…
- Brain, fornix of the An arching fibrous band in the brain connecting the two lobes of the cerebrum. (The cerebrum is the largest…
- Sac, yolk See: Yolk sac
- Ferroniere A jewel held to the forehead by a chain worn by women in France and Italy in the 16th century to hide the…
- Cream A word with many meanings that, in medicine and pharmacy, refers to a water-soluble preparation applied to…