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).
Stricture of the esophagus, chronic
A narrowing or closure of the normal opening of the swallowing tube leading to the stomach, usually caused by scarring from acid irritation. A common complication of chronic gastroesophageal reflux disease (GERD). Several procedures are…
Read the definitionRandom terms
Show more- Demarcation A setting of limits; a boundary; marking the limits of, delimiting; setting apart, separating. The word…
- Carpal tunnel syndrome Carpal tunnel syndrome: A type of compression neuropathy (nerve damage) caused by compression and irritation…
- Choanal Pertaining to the choana, the passageway from the back of one side of the nose to the throat. The choana is…
- Pectoralis muscle absence with syndactyly A unique pattern of one-sided malformations characterized by a defect of the chest (pectoralis) muscle on one…
- Microduplication 22q11.2 syndrome A syndrome due to duplication of a tiny part of chromosome band 22q11.2. Features of the syndrome include the…
- Rest 1. Repose. Relaxation.2. A fragment of embryonic tissue that has been retained after the period of embryonic…
- RF Rheumatoid factor. Rheumatoid factor is an antibody that is measurable in the blood. It is commonly used as a…
- Neural tube defect Pain along the course of a nerve.
- Binswanger disease A form of dementia with blood vessel abnormalities in the deep white-matter of the brain causing loss of…
- Otoscope Instrument for looking in the ear. Today, otoscopic or ophthalmoscopic heads can usually be attached to the…
- Elastase An enzyme that digests and degrades a number of proteins including elastin, an elastic substance in the lungs…
- Q in population genetics The frequency of the less common of two different alternative (allelic) versions of a gene. (The frequency of…