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).
Methylmalonicaciduria
An inherited metabolic (biochemical) disease that causes young children to become mentally retarded. The defect in some (but not all) of these children has to do with an inability to use the vitamin B12 they ingest. If these children are…
Read the definitionRandom terms
Show more- Disease surveillance The ongoing systematic collection and analysis of data and the provision of information which leads to action…
- Thrombophilia The tendency to form blood clots (thrombosis). The clots can break off, travel through the bloodstream and…
- Radiation oncology Also called radiation therapy or radiotherapy, radiation oncology is the use of high-energy rays to damage…
- Liver cancer, adult primary A tumor in which the cancer starts during adulthood in cells in the liver. Also called hepatocellular…
- Gene pool The sum total of genes, with all their variations, possessed by a particular species at a particular time
- Pneumatic larynx A device that uses air to produce sound, helping a person whose larynx has been removed to talk
- Sz Seizure
- Propylthiouracil (PTU) A drug that blocks the production of thyroid hormone by the thyroid gland. PTU is used to treat…
- Prostatectomy The surgical removal of the prostate gland. NTER>
- Ventricular arrhythmias Abnormal rapid heart rhythms (arrhythmias) that originate in the lower chambers of the heart (the…
- Monochromatism 1) Total inability to perceive color. A person with true monochromatism perceives only black, white, and…
- ACL injury See: Anterior cruciate injury