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).
Beta blocker
A class of drugs that block beta-adrenergic substances such as adrenaline (epinephrine) in the 'sympathetic' portion of the autonomic (involuntary) nervous system. By blocking the action of the sympathetic nervous system on the heart, beta…
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Show more- Elective surgery Surgery that is subject to choice (election). The choice may be made by the patient or doctor. For example…
- Recurrence The return of a sign, symptom or disease after a remission. The reappearance of cancer cells at the same site…
- Medication, anti-platelet Platelet-blocking drugs. Drugs that, like aspirin, reduce the tendency of platelets in the blood to clump and…
- Vein, brachial A vein that accompanies the brachial artery between the shoulder and the elbow. The route of the brachial…
- Ganglia, basal A region located at the base of the brain composed of 4 clusters of neurons, or nerve cells. This area of the…
- Gingivitis, phagedenic This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Skin The skin is the body's outer covering. It protects us against heat and light, injury, and infection. It…
- Transplant The grafting of a tissue from one place to another, just as in botany a bud from one plant might be grafted…
- Extradural hematoma See: Epidural hematoma
- Rickets, renal Rickets-like bone malformations caused by prolonged inflammation of the kidneys
- Alpha-ethltryptamine An illicit hallucinogenic drug related to tryptamine. Street names for alpha-ethyltryptamine include…
- Y map The array of genes on the Y chromosome. Once thought to be a genetic wasteland, the Y now is known to contain…