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).
X-ray
1. High-energy radiation with waves shorter than those of visible light. X-rays possess the properties of penetrating most substances (to varying extents), of acting on a photographic film or plate (permitting radiography), and of causing…
Read the definitionRandom terms
Show more- Chorea, senile See: Senile chorea
- Basal metabolic rate A measure of the rate of metabolism. For example, someone with an overly active thyroid will have an elevated…
- Syndrome, autoimmune polyendocrinopathy A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…
- Amnesia, transient global See: Transient global amnesia.
- Ejaculatory duct A canal in the male formed by union of the vas deferens and the duct from the seminal vesicle. The…
- Fraternal twin Twin: A twin who have shared a common uterine environment with its sibling. Fraternal twins are due to the…
- Chronic Obstructive Lung Disease, Global Initiativ See: GOLD
- Monocular 1. With one eye, as in monocular vision.2. With one eyepiece, as in a monocular microscope
- Aetiology The study of the causes. For example, of a disorder. The word 'aetiology' is mainly used in medicine, where…
- Juvenile-onset diabetes See Diabetes, type 1
- AST 1. Aspartate aminotransferase, an enzyme normally present in liver and heart cells. AST is released into…
- Erythema infectiosum A sometimes-used Latin name for fifth disease. See Fifth disease