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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
PTC (percutaneous transhepatic cholangiography)
See: Cholangiography, percutaneous transhepatic
Read the definitionRandom terms
Show more- Acute angle-closure glaucoma Increased pressure in the front chamber (anterior chamber) of the eye due to sudden (acute) blockage of the…
- Colposcope A lighted magnifying instrument used by a gynecologist to examine the tissues of the vagina and the cervix…
- Patho- Pathology, with emphasis on the pathophysiological and pathogenetic mechanisms underlying human disease.
- Prune belly syndrome Partial or complete absence of the abdominal muscles so that the outlines of the intestines are visible…
- Trismus Inability to open the mouth fully. This may be due to spasm of the jaw muscles and be a symptom of tetanus…
- Sense-strand RNA virus See: Positive-strand RNA virus
- Mitochondrial cytopathy, Kearns-Sayre type See: Kearns-Sayre syndrome
- Methanococcus jannaschii A microbe that produces methane, an important energy source, and contains enzymes that withstand high…
- Scaffold 1. In genetics, the chromosome structure consisting entirely of nonhistone proteins remaining after all the…
- Rash, chickenpox Rash, chickenpox: Chickenpox is characterized by a rash, often the first sign of the disease. The rash of…
- Johnson-Stevens syndrome See: Stevens-Johnson syndrome.
- Rib >True ribs: The first seven ribs attach to the sternum (the breast bone) in the front and are known as true…