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).
Hormone, T3
Triiodothyronine, a thyroid hormone. The number 3 is usually in subscript
Read the definitionRandom terms
Show more- Congenital clasped thumb with mental retardation See: Clasped thumbs and mental retardation
- Tooth erosion Tooth erosion is a gradual loss of the normally hard surface of the tooth due to chemical, not bacterial…
- Scoliosis, congenital A structurally normal spine that appears to have a lateral curve (scoliosis). Nonstructural scoliosis…
- Alanine An amino acid, one of the 20 building blocks of protein. Alanine is not an 'essential' amino acid. It is not…
- Renal cell cancer Cancer that develops in the lining of the renal tubules, which filter the blood and produce urine. Also…
- Y chromatin A brilliantly fluorescent body seen under the microscope in cells containing a Y chromosome when the cells…
- Peanut allergy An allergic reaction to peanuts, the leading cause of anaphylaxis, the most severe and potentially life…
- Morton syndrome See: Morton's syndrome
- Medigap Health insurance in the US that is intended to supplement Medicare benefits and presumably to fill the gaps…
- Retic Short for reticulocyte
- Hyperbilirubinemia An elevated level of the pigment bilirubin in the blood. A sufficient elevation will produce jaundice. Some…
- Zomig Brand name for zolmitriptan, a triptan drug for the treatment of migraine