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).
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Show more- Optic glioma A benign tumor on an optic nerve or the optic chiasm (the crossing of the two optic nerves). Optic gliomas…
- Angiotensin II receptor blocker A medication that blocks the action of angiotensin II, permitting the blood vessels to relax and dilate…
- Antipyretic Something that reduces fever or quells it. There are 3 classes of antipyretic medications that are sold OTC…
- Resect To remove. Resect and excise are not synonymous. Excise implies total removal whereas resect need not. A…
- Synaptonemal complex A protein structure that forms between two homologous chromosomes during meiosis and that is thought to…
- Uridine monophosphate (UMP) A molecular ion derived from uridylic acid. It has a uracil as its base
- Legionnaire disease A disease due to the bacteria Legionella pneumophila found in plumbing, shower heads and water-storage tanks…
- Ectoparasite A parasite that lives on or in the skin but not within the body. Fleas and lice are ectoparasites…
- Immunosuppressive agent A medication that slows or halts immune system activity. Immunosuppressive agents may be given to prevent the…
- RDS (respiratory distress syndrome) Formerly known as hyaline membrane disease, a syndrome of respiratory difficulty in newborn infants caused by…
- Sign, Gottron A scaly, patchy redness over the knuckles seen in patients with dermatomyositis, an inflammatory muscle…
- Prosthesis An artificial substitute or replacement of a part of the body such as a tooth, eye, a facial bone, the…