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).
Tick bite
A bite from a bloodsucking, parasitic insect that punctures the skin with a sharp beak. The tic burrows into the skin with its head. Tick bites can carry serious illness, including Rocky Mountain spotted fever, other forms of tick typhus…
Read the definitionRandom terms
Show more- Encopresis Encopresis: Inability to control the elimination of stool (fecal incontinence). Encopresis can have a variety…
- Lens The transparent structure inside the eye that focuses light rays onto the retina (the nerve layer that lines…
- Cataract, nuclear A cataract that occurs in the center (the nucleus) of the lens. See: Cataract
- Nasoenteral tube See: Nasogastric tube
- Mediterranean diet >High consumption of fruits, vegetables, bread and other cereals, potatoes, beans, nuts and seeds; >Olive oil…
- Pancreas, artificial A machine that constantly measures glucose (sugar) in the blood and, in response to an elevated level of…
- Prodrug A precursor (forerunner) of a drug. A prodrug must undergo chemical conversion by metabolic processes before…
- Open cholecystectomy Cholecystectomy: Surgery in which the abdomen is opened to permit cholecystectomy -- removal of the…
- Erythroleukemia A form of acute myeloid leukemia (AML) involving the cells that give rise to the erythrocytes (the red blood…
- Knockout mouse A mouse missing a single gene (that has been knocked out). Knockout mice are used in biomedical research
- AKU Alkaptonuria
- Cerebral hemispheres The two halves of the cerebrum, the largest part of the brain.