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).
Alanine aminotransferase (ALT)
An enzyme that is normally present in liver and heart cells. ALT is released into blood when the liver or heart is damaged. The blood ALT levels are thus elevated with liver damage (for example, from viral hepatitis) or with an insult to…
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Show more- Nodule A small solid collection of tissue, a nodule is palpable (can be felt). It may range in size from greater…
- Evening primrose oil A natural source of essential fatty acids (EFOs). Evening primrose oil contains a higher level of arachnoidic…
- Lateral femoral cutaneous mononeuropathy See: Meralgia paresthetica
- Hereditary essential tremor See: Essential tremor
- Potassium The major positive ion (cation) found inside of cells. The chemical notation for potassium is K+. The proper…
- Study, synchronic See: Study, cross-sectional.
- C1-C7 (cervical vertebrae) C1 through C7 are the symbols for the cervical (neck) vertebrae, the upper 7 vertebrae in the spinal column…
- Premature birth A birth that takes place before 37 weeks of gestation have passed. Historically, the definition of…
- Pick disease Pick disease: A form of dementia characterized by a slowly progressive deterioration of social skills and…
- Thrombectomy Procedure to remove a clot (a thrombus)
- Psoriasis, guttate A type of psoriasis characterized by red, scaly patches of inflamed skin on all parts of the body. It is…
- Bullous Characterized by blistering, such as in a second-degree burn. Bullous is the adjective for bulla. A bulla is…