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).
Acuity test, visual
This test measures how well you see at various distances. It is the familiar eye chart test. The eye chart itself -- the usual one is called Snellen's chart -- is imprinted with block letters that line-by-line decrease in size…
Read the definitionRandom terms
Show more- Sexual masochism Sexual masochism is a disorder in which individuals use sexual fantasies, urges or behaviors involving the…
- Psychosomatic illness The mind influences the body to create or exacerbate illness.
- Sarcoma botryoides A malignancy of the cervix, vagina, or bladder in infants and young children that arises from embryonal…
- Xylitol Xylitol: A sweetener found in plants that is used as a substitute for sugar. Xylitol is considered a…
- Mortality A fatal outcome or, in one word, death. The word 'mortality' is derived from 'mortal' which came from the…
- Cyanosis A bluish color of the skin and the mucous membranes due to insufficient oxygen in the blood. For example, the…
- Fetal surgery The surgical treatment of the fetus before birth. Also called prenatal or antenatal surgery. Fetal surgery is…
- Ataxia Wobbliness. Incoordination and unsteadiness due to the brain's failure to regulate the body's posture and…
- Case-fatality proportion The number of cases of a disease ending in death compared to the number of cases of the disease. Usually…
- DYS Symbol for familial dysautonomia. See: Familial dysautonomia.
- Blastomycosis Infection with a fungus called Blastomyces dermatitidis. The infection causes symptoms in about 50% of cases…
- RIRS (retrograde intrarenal surgery) Something that increases a person's chances of developing a disease.