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).
Essential
1. Something that cannot be done without.2. Required in the diet, because the body cannot make it. As in an essential amino acid or an essential fatty acid. 3. Idiopathic. As in essential hypertension. 'Essential' is a hallowed term…
Read the definitionRandom terms
Show more- Rigor A word with two different but related meanings in medicine:1. A chill, usually with shivering, as at the…
- Morquio syndrome An inherited error in carbohydrate metabolism that results in mucopolysaccharide accumulation and severe…
- Liquid diet The Liquid diet is the restriction of solid food intake, and replacement of solid food with liquids. In…
- Stroke, silent Small strokes that do not cause any symptoms. Silent strokes still damage brain tissue. The most common…
- Rubella vaccine A vaccine designed to prevent rubella, or German measles. German measles was once seen merely as a child's…
- Cone snail A fishing-eating snail (Conidae) that inhabits tropical coral reefs and produces toxins that immobilize their…
- Unguis incarnatus Ingrown toenail
- Anomaly, congenital Anomaly, congenital: A birth defect. A malformation that occurs before birth and is present at birth
- Monosodium glutamate MSG, a sodium salt of the amino acid glutamic acid that enhances the flavor of certain foods. Originally…
- Laryngoscope A flexible, lighted tube used to look at the inside of the larynx (the voice box). The laryngoscope is…
- Legg-Perthes disease See Legg-Calve-Perthes disease
- Medical-school syndrome See: Medical school syndrome