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).
Sign, Kernig
A clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal cord. The test for Kernig sign is done by having the person lie supine (flat on the back), flex the thigh so that it is at a right…
Read the definitionRandom terms
Show more- Penicillium notatus The species of bread mold that produces penicillin. See also: Penicillin history
- Cadaver A dead human body that may be used by physicians and other scientists to study anatomy, identify disease…
- Crohn ileitis Inflammation of the ileum (the farthest segment of the small intestine) due to Crohn disease. Crohn disease…
- Agent Orange An herbicide and defoliant containing 2,4-D and 2,4,5-T and trace amounts of dioxin. Agent Orange was used as…
- Strain 1. An injury to a tendon or muscle resulting from overuse or trauma. 2. A hereditary tendency that originated…
- Elastic fiber A slender fiber in connective tissue that is rich in the protein elastin and has an elastic quality
- Onycholysis Loosening of the nail from the nail bed, usually starting at the border of the nail. The nail tends to turn…
- Post-polio muscular atrophy (PPMA) Belated muscle wasting that occurs as part of the post-polio syndrome (PPS), a constellation of symptoms and…
- Saccade Abrupt rapid small movements of both eyes, such as when the eyes scan a line of print. The saccades can be…
- APC (medication) Aspirin, phenacetin, and caffeine (a pill containing all three)
- Maternal phenylketonuria A mother with the genetic disease phenylketonuria (PKU) whose high blood levels of phenylalanine (phe) are…
- Pediatric bladder infection See: Urinary tract infection in children