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).
Alexander disease
A slowly progressive and ultimately fatal brain disorder that most commonly occurs in children. The infantile form of the disease is characterized by megalencephaly (an abnormally large head), seizures, spasticity and developmental…
Read the definitionRandom terms
Show more- Daw Abbreviation meaning 'dispense as written.' One of a number of hallowed abbreviations of terms that have…
- Night sweats Night sweats: Severe hot flashes which occur at night and result in a drenching sweat. Night sweats can have…
- Wesand See: Weasand
- Aortic Pertaining to the aorta, the largest artery in the body. 'Aortic' is in common usage as, for example, in an…
- Trocar A sharply pointed shaft, usually with a three-sided point. A trocar may be used within a cannula, a hollow…
- Prosthesis, nasal See: Nasal prosthesis
- Compression fracture A fracture caused by compression, the act of pressing together. Compression fractures of the vertebrae are…
- Vertical transmission Passage of a disease-causing agent (a pathogen) vertically from mother directly to baby during the perinatal…
- Percentile The percentage of individuals in a group who have achieved a certain quantity (such as height, weight, and…
- Vertebroplasty A nonsurgical method for the repair of vertebral fractures and compression due to osteoporosis. Broken bones…
- Heroin addiction Physical addiction to heroin, often with concurrent use of other opiates when heroin itself is not available…
- NSAID Nonsteroidal anti-inflammatory drug. NSAIDs are commonly prescribed for the inflammation of arthritis and…