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).
Meningitis, Kernig sign of
This clinical hallmark of meningitis, inflammation of the meninges, the membranes covering the brain and spinal cord, is tested for by having the person lie supine (flat on the back), flex the thigh so that it is at a right angle to the…
Read the definitionRandom terms
Show more- Tick, American dog See American dog tick
- Abductor muscle Any muscle used to pull a body part away from the midline of the body. For example, the abductor muscles of…
- Incidence The frequency with which something, such as a disease, appears in a particular population or area. In disease…
- Cholelithiasis 1. The presence of stones in the gallbladder or common bile duct. 2. The process of formation of such stones…
- CHARGE association A constellation of congenital malformations (birth defects). The name of the condition is an acronym of some…
- Spleen An organ located in the upper left part of the abdomen near the stomach. The spleen produces lymphocytes; it…
- Fiber and cholesterol Soluble fiber substances are effective in helping reduce the blood cholesterol. This is especially true with…
- Amazia A condition wherein the breast tissue is absent, but the nipple is present. Amazia typically is a result of…
- XP Xeroderma pigmentosum
- Positive, false A result that is erroneously positive when a situation is normal. An example of a false positive: a…
- Curare A muscle relaxant used in anesthesia (and, in the past, in arrow poisons by South American Indians). Curare…
- United States Public Health Service The agency responsible for the public health of the American people. The Public Health Service (PHS)…