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).
Hiatus hernia
Tal hernia): An anatomical abnormality in which part of the stomach protrudes up through the diaphragm into the chest. NTER> Normally, the esophagus passes down through the chest, crosses the diaphragm, enters the abdomen through a hole in…
Read the definitionRandom terms
Show more- White blood cell count Kocyte count): The number of white blood cells (WBCs) in the blood. The WBC is usually measured as part of…
- Sequence, finished DNA A DNA sequence in which the bases are identified to an accuracy of no more than 1 error in 10,000 and are…
- Brown, Louise The world's first test-tube baby, conceived by in vitro fertilization and born on July 25, 1978
- Anthrax toxin The toxic substance secreted by the bacterium Bacillus anthracis, the causative agent of the disease anthrax…
- Atrial septum The wall between the two upper chambers (the right and left atrium) of the heart
- Induration Induration: Localized hardening of soft tissue of the body. The area becomes firm, but not as hard as bone
- Therapeutic Relating to therapeutics, that part of medicine concerned specifically with the treatment of disease. The…
- Fear of travel An irrational and unreasonable fear of travel is called agoraphobia. Agoraphobia is a very complex phobia. It…
- Absolute CD4 count The number of 'helper' CD4 T-lymphocytes in a cubic millimeter of blood. With HIV, the absolute CD4 count…
- Breast, infiltrating ductal carcinoma of the Infiltrating lobular carcinoma is the second most common type of invasive breast cancer next to infiltrating…
- Esophageal cancer Esophageal cancer: A malignant tumor of the esophagus. The risk of cancer of the esophagus is increased by…
- Micro-RNA A tiny piece of RNA, about 21 to 23 bases in length, that binds to matching pieces of messenger RNA to make…