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).
PAPP-A
Pregnancy-associated plasma protein A
Read the definitionRandom terms
Show more- Xeroradiograph A picture of the body recorded on paper rather than on film. Also called a xerogram. From the Greek 'xeros'…
- Metaphase chromosome A chromosome in the stage of the cell cycle (the sequence of events in the life of a cell) when a chromosome…
- Metered-dose inhaler Abbreviated MDI. A device that delivers a measured amount of medication as a mist the patient can inhale. A…
- Syndrome, Zollinger-Ellison A rare disorder caused by a tumor called a gastrinoma, most often occurring in the pancreas. The tumor…
- Syndrome, antiphospholipid antibody An immune disorder characterized by the presence of abnormal antibodies in the blood associated with abnormal…
- GOLD-0 One of the stages of chronic obstructive lung disease (COPD), according to the Global Initiative for Chronic…
- Amylo- (Amyl- before a vowel.) A prefix pertaining to starch. From the Greek amylon, meaning starch
- Microscope, compound A microscope that consists of two microscopes in series, the first serving as the ocular lens (close to the…
- AST 1. Aspartate aminotransferase, an enzyme normally present in liver and heart cells. AST is released into…
- Inactivation, X chromosome A syndrome of inappropriate secretion of antidiuretic hormone (ADH) which results in the inability to put out…
- Antiinfective Something capable of acting against infection, by inhibiting the spread of an infectious agent or by killing…
- Lyon hypothesis See Lyonization