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).
Rale
A type of abnormal lung sound heard through a stethoscope. Rales may be sibilant (whistling), dry (crackling) or wet (more sloshy) depending on the amount and density of fluid refluxing back and forth in the air passages. The word rale is…
Read the definitionRandom terms
Show more- Sigmodon hispidus See: Cotton rat
- House surgeon Literally, a surgeon in the house, the house being the hospital. The meaning of the term house surgeon varies…
- HSP Henoch-Schonlein purpura. See: Schonlein-Henoch purpura
- Fong disease See Nail-patella syndrome
- RAST An allergy test done on a sample of blood. The aim with RAST, as with skin tests, is to check for allergic…
- Nipple shield A cap or dome, usually made today of plastic (formerly, rubber), placed over the nipple and areola during…
- Disease, His-Werner Named for the Swiss physician Wilhelm His, Jr. (who also described the bundle of His in the heart) and the…
- Breast augmentation Breast augmentation: Enlargement of the breasts. Augmentation of the breast typically consists of insertion…
- Exanthem A rash. The word 'exanthem' comes from the Greek 'exanthema' which means 'a breaking out.' 'Anthos' in Greek…
- Triceps The triceps muscle extends (straightens) the elbow. Its full name is the triceps brachii. It can be felt as…
- Peutz-Jeghers syndrome A cancer genetic disorder characterized by freckle-like spots on the lips, mouth and fingers and polyps in…
- MRC 1. In the US, the Medical Reserve Corps. 2. In the UK and some Commonwealth countries, the Medical Research…