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).
Pacemaker, internal
A device that uses electrical impulses to regulate the heart rhythm or to reproduce that rhythm. An internal pacemaker is one in which the electrodes into the heart, the electronic circuitry and the power supply are implanted (internally)…
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Show more- Leukemic reticuloendotheliosis See: Hairy cell leukemia
- Dysmetabolic syndrome X A constellation of metabolic abnormalities in serum or plasma insulin/glucose level ratios, lipids…
- Seborrheic eczema Yellowish, oily, scaly patches of skin on the scalp, face, and occasionally other parts of the body
- Inotropic Affecting the force of muscle contraction. An inotropic heart drug is one that affects the force with which…
- Granary weevil A true weevil that is among the most destructive of all insects in stored grain and that is the culprit…
- Fetal dystocia Difficult labor and delivery caused by the size (too big), shape or position of the fetus. Dystocia comes…
- PJS Polycystic kidney disease.
- Abortion, induced An abortion that is brought about intentionally. Also called an artificial or therapeutic abortion. As…
- Random number table A table of numbers generated in an unpredictable, haphazard sequence. Tables of random numbers are used to…
- Pleural Pertaining to the pleura, the thin covering that protects the lungs. The term 'pleural' is pronounced like…
- Arm 1. In popular usage, the appendage that extends from the shoulder to the hand. However, the medical…
- PKU, maternal A "sugar pill" or any dummy medication or treatment. For example, in a controlled clinical trial, one group…