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).
Stenosis, aortic
Narrowing (stenosis) of the heart valve between the left ventricle of the heart and the aorta. This narrowing impedes the delivery of blood through the aorta to the body and makes it tough for the heart to carry out this Herculean task. A…
Read the definitionRandom terms
Show more- ECT Electroconvulsive therapy
- GOLD-0 One of the stages of chronic obstructive lung disease (COPD), according to the Global Initiative for Chronic…
- Adductor spasmodic dysphonia A disorder in which sudden muscle spasms cause the vocal folds (or vocal cords) to slam together. See…
- Metaphase (cell cycle) The stage in the cell cycle (the sequence of events in the life of a cell) when a chromosome is most highly…
- United Network for Organ Sharing (UNOS) The nationwide umbrella for transplantation organ sharing in the U.S. UNOS states that it is 'a private…
- Housemaid's knee See Prepatellar bursitis
- Fear of nudity An abnormal and persistent fear of nudity is called gymnophobia. Sufferers of this phobia experience undue…
- Sweat test A simple test that is used to evaluate a patient who is suspected of having cystic fibrosis (CF). The goal of…
- Pressure, intraocular The pressure created by the continual renewal of fluids within the eye. The intraocular pressure is increased…
- Chromosome, X See: Chronic myelogenous leukemia.
- Humor, aqueous In medicine, humor refers to a fluid (or semifluid) substance. Thus, the aqueous humor is the fluid normally…
- Venereal Disease Research Laboratory test A blood test for syphilis. Venereal Disease Research Laboratory is commonly abbreviated VDRL. A negative…