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).
Deficiency, hex-A
See: Tay-Sachs disease
Read the definitionRandom terms
Show more- Calcification, nonarteriosclerotic cerebral This condition described in 1930 by T. Fahr (and therefore called Fahr syndrome) is a genetic (inherited)…
- Metagene A pattern of gene expression. Not an actual gene. 'We identified aggregate patterns of gene expression…
- Neuroma A tumor that arises in nerve cells
- Cysteine An amino acid, one of the 20 building blocks of protein. Cysteine can be synthesized by the body and is not…
- Stomach paralysis Formally called gastroparesis, this is a medical condition in which the muscle of the stomach is paralyzed by…
- Low vision A visual impairment, not corrected by standard glasses, contact lenses, medicine, or surgery, that interferes…
- Urination, painful See: Dysuria
- Tocolytic Relating to the inhibition of labor, delaying or halting labor
- Race-based drug A drug designed for a particular racial group. The first race-based drug was BiDil, a combination of two old…
- Y. pestis Yersinia pestis, the bacteria that causes the bubonic plague which in the year 541 (as the Black Death) and…
- Disease, cystine transport Commonly known as cystinuria, this is an inherited (genetic) disorder of the transport of an amino acid (a…
- Saline Relating to salt. As an adjective, 'saline' means 'salty, containing salt.' As a noun 'saline' is a salt…