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).
Left heart
The heart is composed functionally of two hearts - the right heart and the left heart. The left heart consists of the left atrium which receives oxygenated blood from the lung and the left ventricle which pumps it out to the body under…
Read the definitionRandom terms
Show more- Breast surgeon A surgeon who is especially skilled in operating on the breast. A breast surgeon may biopsy a tumor in the…
- Red corpuscles Red corpuscles are cells that carry oxygen in the blood. They are also called red blood cells or 'RBCs.'
- Plummer-Vinson syndrome Iron deficiency anemia, esophageal webs, and dysphagia (difficulty swallowing). The iron deficiency is…
- Phytotoxin A poison in a plant. Abrin and ricin are examples of phytotoxins. Abrin comes from the seeds of a plant…
- Beta protein 1 Abbreviated and better known as BP1. See: BP1
- Nephritis, lipomatous A disorder in which the nephrons of the kidney are gradually replaced with fatty tissues, preventing proper…
- Transposon A short mobile DNA sequence that can replicate and of which copies can be inserted at random sites within…
- Ileocolitis, Crohn Crohn disease involving both the ileum (the furthest part of the small intestine just before the colon) and…
- Taint To poison, infect, or spoil
- Film, tear See: Tear film
- EOS The gene for familial eosinophilia. EOS has been mapped to chromosome region 5q31-33 containing the cytokine…
- Surgeon General In the United States, the chief medical officer of the U.S. Public Health Service (USPS), the agency…