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).
Catalyst
A substance that speeds up a chemical reaction but is not consumed or altered in the process. Catalysts are of immense importance in chemistry and biology. All enzymes are catalysts that expedite the biochemical reactions necessary for…
Read the definitionRandom terms
Show more- Cognitive-behavioral therapy See: Cognitive therapy
- Glioma, optic See Optic glioma
- Emesis Vomiting. An emesis basin is usually kept handy for surgery patients recovering from general anesthesia since…
- Cancer of the labia See: Cancer of the vulva
- Eyelid myokymia Fine continuous contractions of the eyelid muscle, typically involving one of the lower eyelids, less often…
- Economy class syndrome The formation of blood clots in veins deep within the legs -- deep vein thrombosis -- occurring during (or…
- Caveola An tiny pit, grotto, depression, incupping in the surface of a cell. The name 'caveola' means little cave…
- Tarsal tunnel syndrome A type of compression neuropathy (nerve disease due to compression of the nerve) in the ankle and foot…
- Optician A specialist in fitting eyeglasses and making lenses to correct vision problems. An optometrist performs eye…
- Myelogenous leukemia, acute Myelogenous leukemia, acute: Abbreviated AML. Also called acute myeloid leukemia or acute nonlymphocytic…
- Homo floresiensis A human-like species who lived until 18,000 years ago in the company of giant Komodo lizards and now-extinct…
- Disease, cardiovascular Disease affecting the heart or blood vessels. Cardiovascular diseases include arteriosclerosis, coronary…