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.
- 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.
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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).
Blood urea nitrogen
Medically called hematuria, blood in the urine can be microscopic or gross. Evaluating hematuria requires consideration of the entire urinary tract. Tests used for the diagnosis of hematuria include the intravenous pyelogram (IVP)…
Read the definitionRandom terms
Show more- Monocyte chemotactic and activating factor See: MPC1
- Polydactyly (hexadactyly) The presence of an extra, sixth finger or toe, a very common congenital malformation (birth defect). This is…
- Stargardt disease An hereditary eye disease that is one of the most frequent causes of macular degeneration in childhood. (The…
- Genomic imprinting The phenomenon of parent-of-origin gene expression. The expression of a gene depends upon the parent who…
- Adenoids Masses of lymphoid tissue in the upper part of throat behind the nose.
- Ventricle, lateral >Lateral ventricles: The lateral ventricles are in the cerebral hemispheres, one in each hemisphere. Each…
- Storm surge The onshore rush of sea or lake water caused primarily by the high winds that are associated with a…
- Tobacco smoke, environmental Abbreviated ETS. See: ETS.
- Focal motor seizure A simple partial seizure with localized motor activity. There may be spasm or clonus (jerking) of one muscle…
- Aneurysm, cardiac Outpouching of an abnormally thin portion of the heart wall. An aneurysm is a localized widening (dilatation)…
- Corneal dystrophy, epithelial basement A disorder in which the cornea (the normally clear front window of the eye) shows grayish fingerprint lines…
- Cytosine (C) One member of the G-C (guanine-cytosine) pair of bases in DNA