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).
Restriction enzyme
An enzyme from bacteria that can recognize specific base sequences in DNA and cut the DNA at that site (the restriction site). A restriction enzyme acts as a biochemical scissors. Also called a restriction endonuclease. A restriction…
Read the definitionRandom terms
Show more- PA X-ray An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP…
- CADASIL Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy. An inherited form…
- Danlos syndrome Better known today as Ehlers-Danlos syndrome (EDS), this is an inherited disorder with easy bruising, joint…
- Delusion A false personal belief that is not subject to reason or contradictory evidence and is not explained by a…
- Addiction, computer See: Computer addiction
- Syndrome, piriformis Irritation of the sciatic nerve caused by compression of the nerve within the buttock by the piriformis…
- Severe cyclonic storm A regionally specific name for a strong tropical cyclone in the North Indian Ocean. Other terms for precisely…
- Fibril The diminutive of fiber. A small fiber, a fine thread
- Mycobacterium leprae The bacillus responsible for leprosy (Hansen disease). Mycobacterium leprae is an obligate parasite that has…
- Hormone, androgenic Any hormone that promotes the development and maintenance of the male sex characteristics. Testosterone is an…
- Acetylsalicylic acid (aspirin) Acetylsalicylic acid (aspirin): Aspirin is a good example of a tradename that has entered into the language…
- Denture An artificial set of teeth that can be removed