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).
Crohn ileitis
Inflammation of the ileum (the farthest segment of the small intestine) due to Crohn disease. Crohn disease is a chronic inflammatory disorder, primarily involving the small and large intestine, but which can affect other parts of the…
Read the definitionRandom terms
Show more- Erythema dose The amount of radiation which, applied to the skin, makes it turn temporarily red (erythematous)
- Penicillin history The discovery of penicillin, one of the major events in the history of medicine. In 1871 the scientist Joseph…
- Triptan A class of drugs introduced in the 1990s for the treatment of migraine that act as agonists for…
- Anatomy, microscopic Known among medical students simply as 'micro', microscopic anatomy is the study of the form of normal…
- Nosology The systematic classification of diseases, or the branch of medical science that deals thereto. The adjective…
- Triglyceride test Triglyceride test: A simple blood test to measure the level of triglycerides in the blood. Triglyceride…
- Osteolytic lesion A 'punched-out' area of severe bone loss. Osteolytic lesions are seen in metastatic lung and breast cancer…
- Disease, Wilson An inherited disorder in which too much copper accumulates in the body. Although the accumulation of copper…
- Base-excision repair See: Base excision repair
- Inferolateral Below and to one side. Both inferior and lateral. In anatomy, there are many such compound terms. For a more…
- Seizure, febrile See: Febrile seizure
- Nat'l Inst. of Child Health and Human Dev.(NICHD) Nt (NICHD): One of the US National Institutes of Health, NICHD is in a sense the NIH for kids in that it is…