MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
ALT (alanine aminotransferase)
An enzyme normally present in liver and heart cells that is released into the bloodstream when the liver or heart is damaged. The blood ALT levels are elevated with liver damage (for example, from viral hepatitis) or with an insult to the…
Read the definitionRandom terms
Show more- Exercise test A test (sometimes called the treadmill test or exercise treadmill test) in which a continuous…
- Inferior vena cava A large vein that receives blood from the lower extremities, pelvis and abdomen and delivers it to the right…
- Hypoxic-ischemic encephalopathy Damage to cells in the central nervous system (the brain and spinal cord) from inadequate oxygen…
- Rate, birth The birth rate is usually given as the number of live births divided by the average population (or the…
- Hyperplasia, benign prostatic A condition characterized by overgrowth of the lining of the uterus. Hyperplasia means overgrowth. The…
- Caries Dental cavities. Holes in the two outer layers of a tooth called the enamel and the dentin. The enamel is the…
- Syndrome, Alpers See: Alpers disease
- Propionibacterium acnes A ubiquitous skin-dwelling organism that is involved in causing acne.In addition to acne, this bacterium (P…
- Vertebra, slipped See: Spondylolisthesis
- Tuberculosis, genetic susceptibility to Genes that make someone susceptible to developing tuberculosis (TB) when exposed to the bacterium…
- Appendectomy Appendectomy: Removal by surgery of the appendix, the small worm-like appendage of the colon (the large…
- Osteoblastoma A benign tumor in bone tissue. Osteoblastomas are small, and are seen most frequently in children or young…