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).
Nondipper
A person in whom there is an absence of the normal nocturnal fall (dip) in blood pressure. Nondipper status has been shown to be an additional risk factor for the development of adverse cardiovascular events. Nondipping is also common…
Read the definitionRandom terms
Show more- Pes planum Flat feet
- HIPAA Acronym that stands for the Health Insurance Portability and Accountability Act, a US law designed to provide…
- Syndrome, Barlow Barlow syndrome is mitral valve prolapse (also known as 'click murmur syndrome'), the most common heart valve…
- Debridement The act of debriding (removing dead, contaminated or adherent tissue or foreign material). Debridement…
- DNA repair pathway The sequence of steps in the repair of DNA. Each step is governed by an enzyme.
- Alanine aminotransferase (ALT) An enzyme that is normally present in liver and heart cells. ALT is released into blood when the liver or…
- Ductus, patent Failure for the ductus arteriosus, an arterial shunt in fetal life, to close on schedule. Before birth, blood…
- Long arm of a chromosome The long arm of a chromosome is termed the q arm. All human chromosomes have 2 arms, the p (short) arm and…
- Bos taurus genome See: Bovine genome
- Test, syphilis (FTA-ABS) The fluorescent treponemal antibody absorbed (FTA-ABS) test for syphilis is a blood serum screening test…
- Pulmonary acinus The ending of a tiny airway in the lung, where the alveoli (air sacs) are located. In anatomy, an acinus is a…
- PDA Patent ductus arteriosus