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).
Prostaglandin
One of a number of hormone-like substances that participate in a wide range of body functions such as the contraction and relaxation of smooth muscle, the dilation and constriction of blood vessels, control of blood pressure, and…
Read the definitionRandom terms
Show more- Systolic The blood pressure when the heart is contracting. It is specifically the maximum arterial pressure during…
- Emergency supplies kit An infectious disease that has newly appeared in a population or that has been known for some time but is…
- Stem cell, spermatogonial See: Sperm stem cell
- Error, beta The statistical error (said to be 'of the second kind' or type II) made in testing an hypothesis when it is…
- Irradiation The use of high-energy radiation from x-rays, gamma rays, neutrons, and other sources to kill cancer cells…
- Brachial paralysis See: Brachial plexus palsy
- Eugenics Literally, meaning normal genes, eugenics aims to improve the genetic constitution of the human species by…
- Stripping Surgery to treat varicose veins. The problematic veins are 'stripped' out by passing a flexible device…
- Corneal dystrophy, lattice See: Lattice dystrophy
- Acid-base balance Acid-base balance refers to the mechanisms the body uses to keep its fluids close to neutral pH (that is…
- Chromosome map A chromosome (one of the microscopically visible carriers of the genetic material DNA) with its centromere…
- Hematopoiesis The production of all types of blood cells generated by a remarkable self-regulated system that is responsive…