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.
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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).
Shigellosis
Epidemic and opportunistic bacillary dysentery due to infection with the Shigella bacteria. Shigellosis causes intestinal pain and diarrhea with mucus and blood in the stool. It is especially common in tropical countries, but frequently…
Read the definitionRandom terms
Show more- Serrated Finely notched like the cutting edge of a saw. The serratus muscles take their name from their serrated…
- Aldosterone A hormone made by the outer portion (cortex) of the adrenal gland that regulates the balance of salt and…
- Biopsy, bone marrow See: Bone marrow biopsy
- Eye melanoma See: Intraocular melanoma
- Disease, clinical A disease with clinical signs and symptoms that can be recognized. As distinct from a subclinical illness…
- Cell, helper A type of T cell that participates in the immune response by recognizing foreign antigens and secreting…
- Placebo-controlled A term used to describe a method of research in which an inactive substance (a placebo) is given to one group…
- Fundus Latin word for the bottom. In medicine, fundus refers to the bottom or base of an organ. For example, the…
- Vaccination, hepatitis B Hepatitis B: Hepatitis B (hep B) vaccine gives prolonged protection, but 3 shots over a half year are usually…
- Dactyledema Swelling of the fingers or toes
- Paresis 1 Incomplete paralysis. 2 A form of neurosyphilis (syphilis affecting the central nervous system -- the brain…
- Designer estrogen An engineered drug that possesses some, but not all, of the actions of estrogen. Designer estrogens are…