MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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.
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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).
Polymorphic light eruption
A variation in the DNA that is too common to be due merely to new mutation. A polymorphism must have a frequency of at least 1% in the population. Examples of polymorphisms include the genes for sickle cell disease, thalassemia and G6PD…
Read the definitionRandom terms
Show more- Modeling, chromatin See: Chromatin remodeling
- Angioneurotic edema, hereditary Edema, hereditary: A genetic form of angioedema. (Angioedema is also referred to as Quinke's disease.)…
- Adenitis Inflammation of a gland. From the aden-, gland + -itis, inflammation
- Klippel-Feil syndrome See: Klippel-Feil sequence
- Auditory tube The tube that runs from the middle ear to the pharynx, also known as the Eustachian tube. The function of…
- Secretin A hormone made by glands in the small intestine that acts to stimulate pancreatic secretions. Commercially…
- Cell, T-4 A type of T cell that has CD4 markers on its surface and participates in the immune response by recognizing…
- Prostatectomy, radical See: Radical prostatectomy
- Mastectomy, radical Removal of all breast tissue, from just under the collar bone to the abdomen, including the chest wall…
- Ventricle, fourth >Lateral ventricles: The lateral ventricles are in the cerebral hemispheres, one in each hemisphere. Each…
- Mitochondrial cytopathy, Kearns-Sayre type See: Kearns-Sayre syndrome
- Fragile site A term devised in 1969 by Frederick Hecht to denote a heritable point on a chromosome where gaps and breaks…