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).
Coenzyme
A substance that enhances the action of an enzyme. (An enzyme is a protein that functions as a catalyst to mediate and speed a chemical reaction). Coenzymes are small molecules. They cannot by themselves catalyze a reaction but they can…
Read the definitionRandom terms
Show more- Syndrome, Rett See: Rett syndrome
- CA 125 CA 125: A cancer marker, a protein normally made by certain cells in the body including those of the uterine…
- Adenopathy Large or 'swollen' lymph nodes. Synonymous with lymphadenopathy
- Inborn error of metabolism A heritable disorder of biochemistry. Examples of inborn errors of metabolism include albinism, cystinuria (a…
- Bile duct cancer An uncommon type of cancer that arises from the bile duct, the tube that connects the liver and the…
- Duct, ejaculatory See: Ejaculatory duct
- Phenotype, Klippel-Feil See: Klippel-Feil sequence
- Neutral posture The posture when the joints are not bent and the spine is aligned and not twisted. Working in neutral…
- Sweat gland tumor A benign (harmless) skin tumor called a syringoma that derives from cells related to sweat glands. (These…
- Health Insurance Portability Accountability Act T: See: HIPAA
- External genitalia, female See: Female external genitalia
- Recombinant DNA Advisory Committee (RAC) The National Institutes of Health (NIH) panel that oversees gene-therapy research in the U.S