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).
Retinal vasculitis
Vasculitis: The retina is the portion of the eye that contains the nerves of sensation that perceive light. It is also filled with tiny blood vessels. Vasculitis of the eye is typically the result of inflammation of the tiny blood vessels…
Read the definitionRandom terms
Show more- Bis in die (on prescription) Seen on a prescription, bid means twice (two times) a day. It is an abbreviation for 'bis in die' which in…
- Remodeling, chromatin See: Chromatin remodeling
- Grand rounds A formal meeting at which physicians discuss the clinical case of one or more patients. Grand rounds…
- Adenoid cystic carcinoma A type of cancer that most often develops in the salivary glands of the head and neck. It may arise in other…
- Abdominal guarding Tensing of the abdominal wall muscles to guard inflamed organs within the abdomen from the pain of pressure…
- Prospective Looking forward. A prospective study or a prospective clinical trial is one in which the participants are…
- Microscope, simple A microscope that has a single converging lens (or a combination of lenses that function optically as a…
- Negative, false A result that appears negative but fails to reveal a situation. An example of a false negative: a particular…
- Carcinoma in situ Cancer that involves only the place in which it began and that has not spread. Carcinoma in situ is an…
- Vision, blurred See: Blurred vision
- Osteochondroma An abnormal, solitary, benign growth of bone and cartilage, typically at the end of a long bone…
- Cystic fibrosis A combining form denoting a cell. Derived from the Greek "kytos" meaning "hollow, as a cell or container."…