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).
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Read the definitionRandom terms
Show more- Abortion, therapeutic An abortion that is brought about intentionally. Also called an artificial or induced abortion. As opposed to…
- Optic disc The circular area in the back of the inside of the eye where the optic nerve connects to the retina. Also…
- Statutory rape A legal term describing sexual intercourse between an adult and a minor. The adult can be found guilty of…
- P53 A tumor suppressor. The designation 'p53' stands for 'protein 53 kilodaltons' in size. p53 is a specific…
- X-ray, PA An X-ray picture in which the beams pass from back-to-front (posteroanterior). By contrast an AP…
- Startle disease A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Preop Short for preoperative, before surgery. The opposite of preop is postop
- Tonometry Tonometry: A standard eye test that determines the fluid pressure inside the eye. Increased pressure is a…
- Pyrophosphate arthropathy Joint damage due to deposition of calcium pyrophosphate. Pyrophosphate arthropathy most commonly affects the…
- Homocysteine Homocysteine: An amino acid produced by the body, usually as a byproduct of consuming meat. Homocysteine is…
- Acinus, pulmonary The ending of a tiny airway in the lung, where the alveoli (air sacs) are located. In anatomy, an acinus is a…
- Dicysteine Cystine