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).
Alien hand syndrome
Syndrome: The feeling that one's hand is possessed by a force outside of ones control. The syndrome typically arises after trauma to the brain, after brain surgery or after a stroke or an infection of the brain. A person with the alien…
Read the definitionRandom terms
Show more- Plaque 1. An semi-hardened accumulation of substances from fluids that bathe an area. Examples include dental plaque…
- Eight-day measles Measles: An acute highly contagious viral disease with fever, runny nose, cough, red eyes, and a spreading…
- Second cranial nerve The second cranial nerve is the optic nerve, the nerve that connects the eye to the brain and carries the…
- White matter The part of the brain that contains myelinated nerve fibers. The white matter is white because it is the…
- Erb's palsy See: Erb palsy
- Congenital malformation A physical defect present in a baby at birth, irrespective of whether the defect is caused by a genetic…
- Club drug A drug such as MDMA (Ecstasy), GHB, Rohypnol, ketamine, methamphetamine, and LSD that is used by young adults…
- Trimester The nine months of pregnancy is traditionally divided into three trimesters: distinct periods of roughly…
- Fetal infant An extremely low birth weight infant. A very, small infant. One, for example, with a birth weight of 400 to…
- Left heart hypoplasia syndrome A form of congenital heart disease in which the whole left half of the heart (including the aorta, aortic…
- Carotid artery A key artery located in the front of the neck though which blood from the heart goes to the brain. There are…
- Defibrillator, automated external Destruction of the underlying cartilage framework of the outer ear (pinnae), usually caused by either…