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).
Cancer, adult primary liver
A tumor in which the cancer starts during adulthood in cells in the liver. Also called hepatocellular carcinoma. Primary liver cancer is different from cancer that has metastasized (spread) from another place in the body to the liver. The…
Read the definitionRandom terms
Show more- Buccal mucosa The inner lining of the cheeks and lips.
- FGFR2 A mutation (change) in the fibroblast growth factor receptor 2 (FGFR2) gene on chromosome 10 causes the…
- BAEP (brainstem auditory evoked potentials) See: ABR test
- Fluoroscopy An x-ray procedure that makes it possible to see internal organs in motion. Fluoroscopy uses x-ray to produce…
- JCML Juvenile chronic myelogenous leukemia. See: Juvenile myelomonocytic leukemia
- Pulmonary hypertension Pulmonary hypertension: High blood pressure in the pulmonary artery that conveys blood from the right…
- Tuna A fish about which there are several health concerns. One concern involves carbon monoxide that prevents the…
- Cerebral cortex A thin mantle of gray matter about the size of a formal dinner napkin covering the surface of each cerebral…
- Danders See: Dander
- Differentiation 1 The process by which cells become progressively more specialized; a normal process through which cells…
- Thyroid gland A gland that makes and stores hormones that help regulate the heart rate, blood pressure, body temperature…
- Aura A premonition. There is often an aura before a migraine or a grand mal seizure. The aura, a symptom of brain…