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).
Double helix
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…
Read the definitionRandom terms
Show more- Acute phase protein See: Acute-phase protein
- Caesarian section Also referred to as a C-section. A procedure in which a baby, rather than being born vaginally, is surgically…
- Familial lung cancer Lung cancer that recurs in families. Lung cancer can occur sporadically in people with no known family…
- Endourologist An endourologist is a urologist with special expertise in navigating, using endoscopic optical instruments…
- Acetaminophen Our Acetaminophen Main Article provides a comprehensive look at the who, what, when and how of Acetaminophen…
- Organic brain syndrome Psychiatric or neurological symptoms, including problems with attention, concentration, and memory…
- Influenza, Hong Kong See: Hong Kong flu
- Spinal cord compression The act of exerting an abnormal amount of pressure on the spinal cord. Compression of the spinal cord may…
- Funny bone As in 'it tickled my funny bone.' When the elbow is bumped, the ulnar nerve running past the elbow is…
- Leukocoria A white pupillary reflex. When one shines a bright light on the pupil, it normally appears red. In…
- Vaccinia keratitis Infection of the cornea due to implantation of vaccinia virus from a smallpox vaccination. People with…
- Spinal Tap Also known as a lumbar puncture or 'LP', a spinal tap is a procedure whereby spinal fluid is removed from the…