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).
Breast bone
Breast bone: Familiar name for the sternum, the long flat bone in the middle of the front of the chest. The sternum consists of three portions: the manubrium (the upper segment of the sternum, a flattened, roughly triangular bone), the…
Read the definitionRandom terms
Show more- EFEMP1 A gene that encodes a protein with the long, complex name of EGF-containing fibulin-like extracellular matrix…
- Histiocytosis, sinus A variant of histiocytosis in which the lymph nodes are the main site of histiocyte proliferation. The…
- Yersinia enterocolitica A bacterium that causes an infectious disease called yersiniosis. Yersinia enterocolitica is a member of the…
- Cephal- Prefix indicating the head
- Arthritis, systemic-onset chronic rheumatoid See: Arthritis, systemic-onset juvenile rheumatoid (Still's disease)
- Allergic reaction The hypersensitive response of the immune system of an allergic individual to a substance. When an allergen…
- Albumin The main protein in human blood and the key to the regulation of the osmotic pressure of blood. Chemically…
- Posteroanterior In anatomy, posteroanterior (PA) means from back-to-front. For example, a PA X-ray of the chest is taken from…
- Disease, chronic wasting See Chronic wasting disease
- Hemorrhagic diarrhea, E. coli Bloody colitis (inflammation of the bowel) caused by E. coli, usually by the strain E. coli 0157:H7. The…
- Care, ambulatory See: Ambulatory care
- Dieldrin A chlorinated hydrocarbon insecticide. See: Aldrin and dieldrin