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).
Immune
Protected against infection. The Latin immunis means free, exempt.
Read the definitionRandom terms
Show more- Blood pH The acidity or alkalinity of blood. The pH of any fluid is the measure of the hydrogen ion (H-)…
- Cyto- Colorblindness of the red-green type (also known as deuteranopia or deuteranomaly). The term "Daltonism" is…
- Mortality A fatal outcome or, in one word, death. The word 'mortality' is derived from 'mortal' which came from the…
- Willis, circle of A cancer of the kidney and one of the most important malignancies in childhood, due to loss or inactivation…
- In-the-canal hearing aid A hearing instrument custom designed to fit in the ear canal. It protrudes slightly into the outer ear and so…
- Pseudorubella Synonymous with Roseola infantum, a viral disease of infants sudden onset of high fever which lasts several…
- WHI The Women's Health Initiative, a long-term health study sponsored by the National Institutes of Health (NIH)…
- Alpers disease A progressive disease of the nervous system characterized by spasticity (tightness), myoclonus and dementia…
- Roth's spot A hemorrhage in the retina with a white center. Originally associated with bacterial endocarditis, Roth's…
- Section, Cesarian The obstetrical procedure is often spelled this way in the U.S. with just an 'e'although the Roman emperor…
- June cold A popular term for hay fever. Although the symptoms of a 'June cold' may be quite similar to those of a real…
- Succumb To lose the will to oppose something or to give up and accept something that you first opposed. In the…