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).
Lymphocytic colitis
Lymphocytic colitis> A type of inflammatory disease of the large intestine (colon). The name derives from the microscopic observations of biopsies of the colon. What is seen in the microscope view of colon tissue is an increased number of…
Read the definitionRandom terms
Show more- Pectus excavatum Caved-in or funnel chest. The Latin 'pectus' means 'chest.' The chest is excavated. It looks as if it has…
- Chondrodystrophic myotonia See: Schwartz-Jampel syndrome
- Office of Human Research Protections (OHRP) The agency responsible for developing, monitoring and exercising compliance over the protections afforded…
- Hormone, aldosterone A hormone made by the outer portion (cortex) of the adrenal gland that regulates the balance of salt and…
- Hydrocephalus Hydrocephalus: Hydrocephalus is an abnormal buildup of cerebrospinal fluid (CSF) in the ventricles of the…
- Anterior chamber The space in the eye that is behind the cornea and in front of the iris. The cornea is the outer…
- Down syndrome critical region Down syndrome critical region: (Abbreviated DSCR) A region on the long (q) arm of chromosome 21 thought to be…
- Amastia A rare condition wherein the normal growth of the breast or nipple does not occur. Unilateral amastia (just…
- Gustavson syndrome A disorder first reported in 1999 by Gustavson and colleagues as a new X-linked mental retardation syndrome…
- Accessory placenta An extra placenta separate from the main placenta. Also called a succenturiate or supernumerary placenta. The…
- Skin test for allergy Allergy: Teste on the skin to identify the allergy substance (the allergen) that is triggering the allergic…
- Syncephaly Conjoined twins whose heads are joined together. From syn-, together + -cephaly, head = heads together. Also…