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).
T4
Thyroxine, a thyroid hormone. The number 4 is sometimes in subscript
Read the definitionRandom terms
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- Delta cell, pancreatic A type of cell in the pancreas (the organ of the digestive system located behind the stomach). Within the…
- Intracranial hematoma A hematoma (a collection of blood) within the cranium (skull). The bleed may or may not be within the brain…
- Frotteurism Frotteurism is a problem where the focus of the person's sexual urges is related to touching or rubbing his…
- Anterograde amnesia See: Antegrade amnesia
- Syndrome of ichthyosis, spasticity, oligophrenia A: Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease characterized by a triad…
- Alcohol Abuse and Alcoholism, National Institute One of the National Institutes of Health, NIAAA's mission is to 'conduct research focused on improving the…
- Colostomy bag A removable, disposable bag that attaches to the exterior opening of a colostomy (stoma) to permit sanitary…
- Skeletal Pertaining to the skeleton, the bones of the body which collectively provide the framework for the body
- Favism A condition characterized by hemolytic anemia (breakup of red blood cells) after eating fava beans (Vicia…
- Craniology The study of variations in size, shape, and proportion of the skull (cranium). Also known as phrenology, it…
- Colitis Inflammation of the large intestine (the colon). There are many forms of colitis, including ulcerative…