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).
Dilate
To stretch or enlarge. It comes from the Latin verb 'dilatare' meaning 'to enlarge or expand.
Read the definitionRandom terms
Show more- Macular Pertaining to the macula. A macula is a small spot. A macula on the skin is a small flat spot while the…
- Antiviral An agent that kills a virus or that suppresses its ability to replicate and, hence, inhibits its capability…
- Test, carcinoembryonic antigen See: Carcinoembryonic antigen
- Uracil (U) A nucleotide base and one member of the A-U (adenine-uracil) base pair in RNA. The other base pair in RNA is…
- Ectopic In the wrong place. Out of place. An ectopic kidney, for example, is one that is not in the usual location…
- Tobacco A South American herb, formally known as Nicotiana tabacum, whose leaves contain 2-8% nicotine and serve as…
- Vitamin B1 deficiency, infantile See: Infantile beriberi
- Tumor marker, CEA Carcinoembryonic antigen (CEA) is a protein found in many types of cells but associated with tumors and the…
- Cutaneous syndactyly A condition in which fingers or toes are joined together, and the joining involves only the skin, not the…
- ESRD End-stage renal disease
- Bernstein test A test to find out if heartburn is caused by acid in the esophagus and so to diagnose GERD (gastroesophageal…
- Acid deposition A complex chemical and atmospheric phenomenon that occurs when emissions of sulfur and nitrogen compounds and…