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).
Eye chart, Snellen's
The familiar eye chart used to measure how well you see at various distances. Snellen's chart is imprinted with block letters that line-by-line decrease in size, corresponding to the distance at which that line of letters is normally…
Read the definitionRandom terms
Show more- Fievre boutonneuse African tick typhus, one of the tick-borne rickettsial diseases of the eastern hemisphere, similar to Rocky…
- Arachidonate 5-lipoxygenase activating protein ALOX5AP. See: FLAP
- Insufficiency, small intestine See: Short bowel syndrome
- Hypoplasia of the thymus and parathyroids See: DiGeorge syndrome
- Neuroplasticity The brain's ability to reorganize itself by forming new neural connections throughout life. Neuroplasticity…
- Multicentric Having more than one center. A term often applied to tumors. A minority of Wilms tumors are multicentric and…
- Coccyx The small tail-like bone at the bottom of the spine very near to the anus. The coccyx is made up of 3-5…
- AT (in DNA) AT stands for adenine and thymine, a base pair in DNA. The other base pair in DNA is GC (guanine and cytosine)
- Hereditary nonpolyposis colorectal cancer See: Hereditary nonpolyposis colon cancer
- Chimeraplasty A method of gene therapy based upon the use of a molecule called a chimeraplast, a synthetic blend of DNA and…
- Doula 1. A non-medical assistant in childbirth. A doula is not the father but is usually a woman who is experienced…
- Fever of Unknown Origin Fever of unknown origin (FUO) is a fever greater than 38.3°C (101 °F) that has occurred intermittently for…