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).
Duct
A passage or a tube with well-defined walls suitable for the conveyance of air or liquids, as the bile duct and the pancreatic duct. Duct is a contraction of the New Latin word ductus. The Romans, however, used the word canalis to…
Read the definitionRandom terms
Show more- Pill splitter A device for tablet splitting
- BMD (bone mass density) Abbreviation for bone mass density and the synonymous term, bone mineral density
- Familial hypertrophic cardiomyopathy A genetic disorder of the heart characterized by increased growth (hypertrophy) in thickness of the wall of…
- Bypass An operation in which a surgeon creates a new tubular pathway for the movement of fluids and/or other…
- Syndrome, Alagille Also known as arteriohepatic dysplasia, this is a genetic disorder characterized by jaundice in the newborn…
- Audiology The study of hearing.
- Participant 1. In a clinical trial, someone who takes part in it. A participant may or may not have a disease. The term…
- Sphenoid 1. Shaped like a wedge. 2. Relating to the sphenoid bone (which is wedge-shaped)
- C. elegans Caenorhabditis elegans, a roundworm
- Amyotrophic lateral sclerosis 2 ALS2. A juvenile-onset form of amyotrophic lateral sclerosis (ALS) inherited in an autosomal recessive manner…
- Melanoma, acral-lentiginous One of the four clinical types of malignant melanoma, uncommon in whites but the most common type in…
- Clinophobia An abnormal and persistent fear of going to bed. Sufferers from clinophobia experience anxiety even though…