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).
Diphtheria
Diphtheria: An acute infectious disease that typically strikes the upper respiratory tract including the throat. It is caused by infection with the bacteria Corynebacterium diphtheriae. Symptoms include sore throat and mild fever at first…
Read the definitionRandom terms
Show more- Protein C A vitamin K-dependent protein in plasma that enters into the cascade of biochemical events leading to the…
- Disease, Anderson-Fabry See: Fabry disease
- Nickel A silver-white metallic element. Long-term exposure to nickel, such as from jewelry, can cause a form of…
- Introitus, facial canal In anatomy, an introitus is an entrance, one that goes into a canal or hollow organ. The introitus of the…
- Bulbourethral gland Also called Cowper's gland. A pea-sized gland in the male located behind and to the side of the urethra that…
- Manicheel tree A dangerous tropical tree whose sap is highly poisonous and corrosive. The sap comes out when a leaf is…
- Hallucination A profound distortion in a person's perception of reality, typically accompanied by a powerful sense of…
- Corpus callosum, agenesis of the See: Agenesis of the corpus callosum
- Alanine aminotransferase (ALT) An enzyme that is normally present in liver and heart cells. ALT is released into blood when the liver or…
- Marburg virus An inherited disorder of connective tissue characterized by abnormalities of the eyes, skeleton, and…
- Heart disease, rheumatic Heart damage caused by rheumatic fever. Treatment is by preventing reinfection with strep and by treating…
- Albinism and hemorrhagic diathesis Pigmented reticuloendothelial cells: See: Hermansky-Pudlak syndrome