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).
Type I error
The statistical error (said to be 'of the first kind' or alpha error) made in testing an hypothesis when it is concluded that a treatment or intervention is effective when it really is not. Sometimes referred to as a false positive
Read the definitionRandom terms
Show more- Ehlers-Danlos syndrome See: Ehlers-Danlos syndrome, dermatosparaxis type.
- Forensics, DNA DNA:See: DNA forensics
- APOBEC3G A human protein that interferes with the replication of HIV by incorporating itself into virus particles and…
- Deficiency, ceruloplasmin Lack of the protein ceruloplasmin from the blood and accumulation of iron in the pancreas, liver and brain…
- Syphilis test, RPR Rapid plasma reagin, a blood test for syphilis that looks for an antibody that is present in the bloodstream…
- Ketonuria A condition in which abnormally high amounts of ketone bodies (a byproduct of the breakdown of cells) are…
- Oscillating vision See: Oscillopsia
- Ankyloglossia A minor congenital anomaly (birth defect) in which the flap of mucous membrane under the tongue (known as the…
- Shock, vasogenic Shock caused by widening of the blood vessels, usually from medication
- Operon A set of genes transcribed under the control of an operator gene. More specifically, an operon is a segment…
- Drug Enforcement Administration (DEA) Every prescription written in the United States bears a DEA number, that of the prescribing doctor, the DEA…
- Cancer care Cancer care: Taking care of cancer. When cancer is suspected, a biopsy is usually performed and the tissue is…