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.
- 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).
Petechiae
Pinpoint flat round red spots under the skin surface caused by intradermal hemorrhage (bleeding into the skin). Petechiae are red because they contain red blood that has leaked from the capillaries into the skin. Petechiae are quite tiny…
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Show more- Leukemia Leukemia: Cancer of the blood cells. The growth and development of the blood cells are abnormal. Strictly…
- Dissection, aortic See: Aortic dissection
- Sarcoma, Ewing Sarcoma, Ewing: A type of bone tumor that occurs in children and adolescents, most often in the large bones…
- Adenovirus A group of viruses responsible for a spectrum of respiratory disease as well as infection of the stomach and…
- Tension, intraocular The pressure within the eye
- Iodide goiter See Iodine excess
- Slow virus 1. A virus that has a long incubation period before the onset of a gradually progressive disease. 2…
- WDWN Abbreviation for 'well developed, well nourished' used by doctors as shorthand when jotting down the results…
- Menometrorrhagia Excessive uterine bleeding, both at the usual time of menstrual periods and at other irregular intervals…
- Athlete's feet See: Athlete's foot
- Appendix testis A small solid projection of tissue on the outer surface of the testis which is a remnant of the embryologic…
- Score, Apgar A practical method to assess a newborn infant, the Apgar score is a number arrived at by scoring the heart…