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).
Food and Drug Administration
The FDA, an agency within the U.S. Public Health Service, which is a part of the Department of Health and Human Services. Background: The FDA regulates over $1 trillion worth of products, which account for 25 cents of every dollar spent…
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Show more- UA Abbreviation for urinalysis, a test that determines the content of the urine. Because urine removes toxins…
- Vein A blood vessel that carries blood low in oxygen content from the body back to the heart. The deoxygenated…
- Evening primrose oil A natural source of essential fatty acids (EFOs). Evening primrose oil contains a higher level of arachnoidic…
- Human T-lymphotropic virus HTLV. A retrovirus that causes adult T-cell leukemia. HTLV is endemic (constantly present) in southern Japan…
- Medical helminthology The field of medicine that pertains to helminths (worms) capable of disease in people. For more about these…
- Hydranencephaly A condition in which the cerebral hemispheres of the brain are absent and replaced by sacs filled with…
- Palindrome Pertaining to a palindrome. A DNA sequence that reads the same in both directions is a palindromic sequence.
- Esophagus The tube that connects the pharynx (throat) with the stomach. The esophagus lies between the trachea…
- Anus, imperforate A congenital malformation (a birth defect) in which the rectum is a blind alley (a cul-de-sac) and there is…
- Parathyroids, hypoplasia of the thymus and See: DiGeorge syndrome
- Syndrome, toxic shock A grave condition occurring predominantly in menstruating women using tampons, toxic shock is characterized…
- PDA Patent ductus arteriosus