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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Contrast sensitivity, visual
The ability to perceive differences between an object and its background
Read the definitionRandom terms
Show more- Achilles tendonitis Inflammation of the Achilles tendon, the tough sinew that attaches the calf muscle to the back of the…
- Tendonopathy Any disease or dysfunction of a tendon, The form of tendonopathy is named for the affected tendon, as in…
- Disease, Osler-Rendu-Weber See: Hereditary hemorrhagic telangiectasia
- Leaded gasoline See: Tetraethyl lead
- Fasciolopsis The giant intestinal fluke. See: Fasciolopsis.
- Pharyngoesophageal diverticulum See: Zenker diverticulum
- Vaccination, rubella See Immunization, MMR.
- Proctitis, ulcerative Ulcerative colitis that is limited to the rectum. Ulcerative colitis itself is a relatively common disease…
- Duct A passage or a tube with well-defined walls suitable for the conveyance of air or liquids, as the bile duct…
- Disease, Quincke's This is angioneurotic edema (or angioedema), a form of localized swelling of the deeper layers of the skin…
- Weil syndrome A severe form of leptospirosis with liver disease. See: Leptospirosis
- Cradle cap A form of seborrheic dermatitis. of the scalp in infants. It is characterized by flaking or scaling of the…