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).
Extrapyramidal system
That part of the nervous system that regulates muscle reflexes
Read the definitionRandom terms
Show more- Gland, thyroid See: Thyroid gland
- Dirofilaria immitis The dog heartworm
- Disorders, myeloproliferative Malignant diseases of certain bone marrow cells including those that give rise to the red blood cells, the…
- DNA, coding A sequence of DNA that codes for protein. Coding DNA sequences are separated by long regions of DNA called…
- Total knee replacement Total knee replacement: A surgical procedure in which damaged parts of the knee joint are replaced with…
- Medical word origin See: Medical etymology
- Oliver Wendell Holmes, Sr. See: Holmes, Oliver Wendell, Sr.
- Bicarbonate In medicine, bicarbonate usually refers to bicarbonate of soda (sodium bicarbonate, baking soda) white powder…
- Lung cancer, familial Lung cancer that recurs in families. Lung cancer can occur sporadically in people with no known family…
- X-ray, PA An X-ray picture in which the beams pass from back-to-front (posteroanterior). By contrast an AP…
- Febrile herpes A small sore situated on the face or in the mouth that causes pain, burning, or itching before bursting and…
- Ants, fire Originally from S. America. Among the worst insect pests ever to invade the U.S. Red or yellowish ants of…