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).
Helix, double
The structure of DNA with the two strands of DNA spiraling about one other. The double helix looks something like an immensely long ladder twisted into a helix, or coil. The sides of the 'ladder' are formed by a backbone of sugar and…
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Show more- Catheter A thin, flexible tube. For example, a catheter placed in a vein provides a pathway for giving drugs…
- Hysterectomy, subtotal The uterus is surgically removed but the cervix is left is left in place. Also called a partial hysterectomy
- Cytogenetics The study of chromosomes, the visible carriers of DNA, the hereditary material. Cytogenetics is a fusion…
- Henoch-Schonlein purpura Henoch-Schonlein purpura: See: Schonlein-Henoch purpura.
- Hole, macular A hole in the macula, the tiny oval area made up of millions of nerve cells located at the center of the…
- Pecs Slang for the pectoral muscles, muscles of the 'anterior chest' (the front of the chest). The Latin 'pectus'…
- Meningoencephalitis Meningitis + encephalitis, inflammation of the meninges and brain. Called also: Encephalomeningitis
- Cardiac tamponade A life-threatening situation in which there is such a large amount of blood or other fluid inside the…
- Prader-Willi syndrome Prader-Willi syndrome: A syndrome characterized by severe hypotonia (floppiness), poor suck and feeding…
- PEJ Percutaneous endoscopic jejunostomy
- Liposuction, ultrasonic-assisted Liposuction, ultrasonic-assisted: Liposuction involves the surgical suctioning of fat deposits from specific…
- Homeopathy A system of therapy based on the concept that disease can be treated with drugs (in minute doses) thought…