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).
Gram-negative
Gram-negative bacteria lose the crystal violet stain (and take the color of the red counterstain) in Gram's method of staining. This is characteristic of bacteria that have a cell wall composed of a thin layer of a particular substance…
Read the definitionRandom terms
Show more- Attenuated virus To attenuate is to weaken or to make (or become) thin. The word derives from a combination of the Latin…
- Mixed-lineage leukemia A type of childhood leukemia in which a piece of chromosome 11 has been translocated (broken off and attached…
- CHAMPUS The Civilian Health and Medical Program of the Uniformed Services (in the United States). CHAMPUS is a…
- Calcium A mineral found mainly in the hard part of bones, where it is stored. Calcium is added to bones by cells…
- Scientist, medical See: Medical scientist
- Antifungal agent A drug used to treat fungal infections. Examples of antifungal drugs include miconazole (MONISTAT) and…
- Ear, internal There are three sections of the ear. They are the external ear, the middle ear, and the internal ear. The…
- Corneal transplant The replacement of the clear window on the front of the eye (cornea) by a healthy cornea. The procedure is…
- Smallpox bioterrorism The misuse of smallpox as an agent of bioterrorism. Smallpox was eradicated in 1977. Routine vaccinations…
- Subcutaneous hematoma A bruise
- Inhibitor, protease An agent that can keep a protease from working and splitting a protein into peptides. Protease inhibitors are…
- Diverticulosis/diverticulitis and fiber Fiber: High fiber diets help delay the progression of diverticulosis and, at least, reduce the bouts of…