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).
Natural killer cell
A cell that can react against and destroy another cell without prior sensitization to it. Natural killer (NK) cells are part of our first line of defense against cancer cells and virus-infected cells. NK cells are small lymphocytes that…
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Show more- Glycoprotein A molecule that consists of a carbohydrate plus a protein. Glycoproteins play essential roles in the body…
- Atrial Pertaining to the atria, the upper chambers of the heart, as in atrial fibrillation and atrial septal defect
- Bone Bone is the substance that forms the skeleton of the body. It is composed chiefly of calcium phosphate and…
- Fear of women An abnormal, irrational and persistent fear of women. Sufferers experience undue anxiety even though they…
- Wolf-Hirschhorn syndrome Abbreviated WHS. A chromosome disorder due to partial deletion of the short (p) arm of chromosome 4. It is…
- Anteroposterior From front to back. When a chest x-ray is taken with the back against the film plate and the x-ray machine in…
- Immunosuppression Suppression of the immune system. Immunosuppression may result from certain diseases such as AIDS or lymphoma…
- Urinalysis Urinalysis: A test that determines the content of the urine. Because urine removes toxins and excess liquids…
- EFEMP1 A gene that encodes a protein with the long, complex name of EGF-containing fibulin-like extracellular matrix…
- Anfinsen, Christian Boehmer, Jr. (1916-1995) American biochemist who shared the 1972 Nobel Prize for work that helped explain the structure…
- Cecum The cecum (also spelled caecum), the first portion of the large bowel, situated in the lower right quadrant…
- NF2 (neurofibromatosis type 2) Neurofibromatosis type 2