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).
Paraoxonase
An enzyme associated with high-density lipoprotein (HDL) that is believed to protect against the oxidation of low-density lipoprotein (LDL) and hence to affect the risk of coronary artery disease. There are 3 paraoxonase genes (PON1, PON2…
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Show more- Test, syphilis (RPR) Rapid plasma reagin, a blood test for syphilis that looks for an antibody that is present in the bloodstream…
- Sternal rib One of the first 7 pairs of ribs. A rib is said to be a 'sternal' rib or a 'true' rib if it attaches to the…
- Pressure hives See Pressure urticaria
- Shunt, Blalock-Taussig A pioneering heart operation named after the American surgeon Alfred Blalock (1899-1964) and the pediatric…
- Dose, absorbed In radiology, the absorbed dose is the amount of energy that is deposited in any material by ionizing…
- Memory B cells Secondary immune-system components that have an affinity for a particular antigen. Like other B cells, memory…
- State, acute confusional See: Delirium
- Pregnancy danger from fifth disease Caused by a virus known as parvovirus B 19. Symptoms include low-grade fever, fatigue, a 'slapped cheeks…
- Quaque die (on prescription) Seen on a prescription, qd (or, written with periods, q.d.) means one a day (from the Latin quaque die). The…
- Pseudo-Hurler polydystrophy A rare genetic disease that is passed on via an autosomal recessive gene. It is characterized by abnormal…
- CpG In genetics, a site where cytosine (C) lies next to guanine (G) in the DNA sequence. (The p indicates that C…
- Pharmacology The study of drugs, their sources, their nature, and their properties. Pharmacology is the study of the…