MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Artificial pacemaker
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)…
Read the definitionRandom terms
Show more- Overbreathing See: Hyperventilation
- Endotracheal tube A flexible plastic tube that is put in the mouth and then down into the trachea (the airway). The doctor…
- Pernicious anemia Pernicious anemia: A blood disorder caused by inadequate vitamin B12 in the blood. Patients who have this…
- Hypomnesia Abnormally poor memory of the past. As compared to hypermnesia and amnesia. From hypo- + the Greek mneme…
- Varicella rash Rash: Varicella (chickenpox) is characterized by a rash, often the first sign of the disease. The rash of…
- Histoplasmosis A disease caused by the fungus Histoplasma capsulatum. Most people with histoplasmosis have no symptoms…
- Centenarian Someone who is 100 or more years old. Someone 110 years old and over (no upper limit) may also be referred to…
- Crib death The sudden and unexpected death of a baby with no known illness, typically affecting infants from 2 weeks to…
- Fear of socializing Ial phobia): Excessive fear of embarrassment in social situations that is extremely intrusive and can have…
- Intolerance, lactose The inability to digest lactose, a sugar component of milk and most other dairy products. Lactose is…
- Facial nerve paralysis Loss of voluntary movement of the muscles on one side of the face due to abnormal function of the facial…
- Morton disease See: Morton's neuroma