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).
Abdomen, acute
The abrupt (acute) onset of abdominal pain. A potential medical emergency, an acute abdomen may reflect a major problem with one of the organs in the abdomen such as the appendix (being inflamed = appendicitis), the gallbladder (inflamed =…
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Show more- Lindane An organochlorine pesticide and nerve poison. Also a suspected carcinogen (cancer-causing agent). Although…
- Bowel sounds The gurgling, rumbling, or growling noises from the abdomen caused by the muscular contractions of…
- XYY An extra Y chromosome in a male. See: XYY syndrome
- Mountain sickness, acute (AMS) Acute mountain sickness (AMS) is the illness that results from being in a high altitude environment. AMS is…
- Tamoxifen (Nolvadex) An antiestrogen (a drug that blocks the effects of estrogen) which competes with estrogen for binding sites…
- Circulatory system The system that moves blood throughout the body. The circulatory system is composed of the heart, arteries…
- Adverse drug reaction See: Adverse reaction
- Acne rosacea Acne, rosacea: This term is actually a misnomer! The appropriate term is simply rosacea which is a chronic…
- BRCA1 A gene that normally acts to restrain the growth of cells in the breast but which, when mutated, predisposes…
- Error, alpha The statistical error (said to be 'of the first kind' or type I) made in testing an hypothesis when it is…
- Complicated grief Grief that is complicated by adjustment disorders (especially depressed and anxious mood or disturbed…
- Cm (centimeter) A unit of measure in the metric system which is 1/100'th of a meter. There are 2.54 centimeters (cms) in one…