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).
Orthologous gene
1. A term coined by the chemist Linus Pauling who defined it as "the preservation of good health and the treatment of disease by varying the concentration in the human body of substances that are normally present in the body. The treatment…
Read the definitionRandom terms
Show more- Node, sinoatrial The sinoatrial is one of the major elements in the cardiac conduction system, the system that controls the…
- Dilation, pupil This examination enables your eye care professional to see more of your retina, the light-sensitive layer of…
- Pauling See: Pauling, Linus
- McArdle disease Glycogen storage disease type V and the most common type of glycogen storage disease. McArdle disease is an…
- Nucleic acids See nucelic acid
- Ultrafast CT Electron beam computerized tomography (EBCT), a new (and controversial) noninvasive test for the detection of…
- Leuko- Prefix meaning white, as in leukocyte (white blood cell). Leuko- comes from the Greek 'leukos' meaning white…
- Alienist The term 'alienist' was heading for obsolescence until it was returned to a position of some prominence by…
- Randomized controlled trial (RCT) A study in which people are allocated at random (by chance alone) to receive one of several clinical…
- Infection, urinary tract (UTI) An infection in the urinary system that begins when microorganisms cling to the opening of the urethra (the…
- EGF Epidermal growth factor. A polypeptide (small protein) that is a powerful mitogen. (It stimulates cells to…
- Syndrome, dumping A group of symptoms that occur when food or liquid enters the small intestine too rapidly. These symptoms…