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).
BUN
Blood urea nitrogen. A measure primarily of the urea level in blood. Urea is cleared by the kidney and diseases which compromises the function of the kidney will frequently lead to increased blood levels. The blood BUN level can also rise…
Read the definitionRandom terms
Show more- Frame, open reading See: Open reading frame
- Inferior A large vein that receives blood from the lower extremities, pelvis and abdomen and delivers it to the right…
- Intussusception Intussusception: Telescoping (prolapse) of a portion of the intestine within another immediately adjacent…
- HTLV Human T-lymphotropic virus
- Exercise-induced asthma Asthma: Asthma that is 'triggered' by vigorous physical activity. Exercise-induced asthma tends particularly…
- Bilateral pneumonia See: Pneumonia, bilateral
- Dystrophy, lattice See: Lattice dystrophy
- Allergic contact dermatitis A red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system…
- Meibomian gland One of the little glands in the eyelids that make a lubricant called sebum which they discharge through their…
- Pneumoconiosis, coal miner's See: Black lung disease
- Cachectic Having cachexia, physical wasting with loss of weight and muscle mass due to disease. Patients with advanced…
- Amylo- (Amyl- before a vowel.) A prefix pertaining to starch. From the Greek amylon, meaning starch