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).
Radioisotope
A version of a chemical element that has an unstable nucleus and emits radiation during its decay to a stable form. Radioisotopes have important uses in medical diagnosis, treatment, and research. A radioisotope is so-named because it is a…
Read the definitionRandom terms
Show more- Nephritis Inflammation of the kidney. Nephritis can be acute or chronic. Acute nephritis is most commonly caused by…
- Excisional biopsy A biopsy in which an entire biopsy in which an entire lesion, is removed. A excisional biopsy is in contrast…
- Freckles Freckles: See: Freckle.
- Abuse, physical child Next to child neglect, physical abuse is the second most frequently reported form of child abuse, accounting…
- Nosocomial Originating or taking place in a hospital, acquired in a hospital, especially in reference to an infection…
- Tophus A nodular mass of uric acid crystals. Tophi are characteristically deposited in different soft tissue areas…
- Borrelia A group of bacteria that are helical spirochetes of the genus Borrelia. Some species of Borrelia cause…
- Irritable bowel syndrome (IBS) Irritable bowel syndrome (IBS): A common gastrointestinal disorder involving an abnormal condition of gut…
- Test, nerve conduction See: Nerve conduction velocity test
- Nondipper A person in whom there is an absence of the normal nocturnal fall (dip) in blood pressure. Nondipper status…
- Degeneration, macular Degeneration, macular: A disease that progressively destroys the macula, the central portion of the retina…
- Rectal itching See Anal itching