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).
Canker sore
Canker sore: A small ulcer crater in the lining of the mouth that is often painful and very sensitive. Also known as an aphthous ulcer. Canker sores are one of the most common problems that occur in the mouth. About 20% of the population…
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Show more- Spherocytosis, hereditary (HS) A genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing)…
- Superfluous Beyond what is sufficient. A sixth finger is superfluous
- DPC4 See: MADH4
- PKU See Maternal phenylketonuria.
- Syndrome, Tourette Syndrome, Tourette: A tic disorder characterized by the presence of chronic vocal and motor tics, probably…
- Bruit A sound, especially an abnormal one. A bruit may be heard over an artery or vascular channel, reflecting…
- Leukoencephalopathy with vanishing white matter White matter: An inherited brain disease that occurs mainly in children. and follows a chronic progressive…
- Nephro- Prefix referring to the kidney as, for example, in nephrotoxic. From the Greek nephros meaning kidney
- Ortholog A gene in two or more species that has evolved from a common ancestor. Also called an orthologous gene
- Rectal incontinence Inability to hold feces in the rectum due to failure of voluntary control over the anal sphincters with…
- EM (electron microscope) A microscope in which an electron beam replaces light to form the image. EM stands for electron microscope…
- Concussion of the brain A traumatic injury to the brain as a result of a violent blow, shaking, or spinning. A brain concussion can…