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).
Sinus node
The sinus node is one of the major elements in the cardiac conduction system, the system that controls the heart rate. This stunningly designed system generates electrical impulses and conducts them throughout the muscle of the heart…
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Show more- Doraphobia An abnormal and persistent fear of fur. Sufferers of this fear avoid fur-bearing animals such as dogs, cats…
- Kinetic With movement. The opposite of kinetic is akinetic. It means without movement. In neurology, kinetic and…
- Flax seed The seed of the common flax plant (also known as linseed and, botanically, Linum usitatissimum). Flax seed…
- Impaction, dental Teeth pressing together. For example, molar teeth (the large teeth in the back of the jaw) can be impacted…
- Vertebral compression fracture One of the last two ribs. A rib is said to be "vertebral" if it does not attach to the sternum (the breast…
- Cardiac stress testing, exercise The exercise cardiac stress testing (ECST) is the most widely used cardiac (heart) screening test. The…
- Gastric emptying study Gastric emptying study: A gastric emptying study evaluates the emptying of food from the stomach. For a…
- Parietal pericardium The outer layer of the pericardium which is a conical sac of fibrous tissue that surrounds the heart and the…
- Foot-drop Dropping of the front of the foot due to weakness or paralysis of the anterior muscles of the lower leg…
- Leiomyoma A benign tumor of smooth muscle, the type of muscle that is found in the heart and uterus. A leiomyoma of the…
- Modafinil Modafinil: An oral drug first approved by the FDA in 1998 for the treatment of narcolepsy, a condition in…
- Hyperthermia : Overheg of the body. This may be due to extreme weather conditions. Unrelieved hyperthermia can lead to…