MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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.
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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).
System, peripheral nervous (PNS)
That portion of the nervous system that is outside the brain and spinal cord. The peripheral nervous system (PNS) is one of the two major divisions of the nervous system. The other is the central nervous system (CNS) which is made up of…
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Show more- Vitamin A >Beta carotene: An antioxidant which protects cells against oxidation damage that can lead to cancer. Beta…
- Buschke disease See: Scleredema
- Cancer, skin Cancer, skin: Cancer of the outer surface of the body. The most common cancer in the U.S. There are many…
- Cys-Cys Cystine
- ACG2 Achondrogenesis type II
- Arteriosclerotic retinopathy Retinal disease caused by arteriosclerosis. In this condition, the arterioles (small arteries) in the retina…
- MYH A base excision repair gene responsible for an hereditary colon cancer syndrome. MYH is located on the short…
- Menstruation, anovular Menstruation without ovulation. The egg stays within the ovary and usually disintegrates but sometimes it is…
- Sentinel lymph node biopsy Sentinel lymph node biopsy: Examination of the first lymph node ('gland') that receives lymphatic drainage…
- Intraoperative radiation therapy Radiation treatment given during surgery. Also called IORT. See also radiation therapy
- Heterochromia iridis A difference of color between the iris of one eye and the other. (A person with one brown and one blue eye…
- Liver transplant Liver transplant: Surgery to remove a diseased liver and replace it with a healthy liver (or part of one)…