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).
Hyperactivity
A higher than normal level of activity. An organ can be described as hyperactive if it is more active than usual. Behavior can also be hyperactive. People who are hyperactive always seem to be in motion. They can't sit still; they may dash…
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Show more- Radiologist A physician specialized in radiology, the branch of medicine that uses ionizing and nonionizing radiation for…
- Neophobia Fear of anything new, of innovation, an irrational fear of new situations, places, or things. In animal…
- Geiger counter The most commonly used portable radiation detection and measuring instrument, consisting of a gas-filled tube…
- Gene The basic biological unit of heredity. A segment of deoxyribonucleic acid (DNA) needed to contribute to a…
- Philippine hemorrhagic fever A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage…
- Murray Valley encephalitis A viral encephalitis first recognized in the Murray Valley, in Victoria, Australia, caused by a flavivirus…
- IL-1 Interleukin-1
- Retinoic acid syndrome A syndrome that occurs from treatment with retinoic acid and is characterized by fever, dyspnea (difficulty…
- Piercing Using a sharp instrument, usually a needle, to make a temporary or permanent hole through an earlobe or other…
- EMG Electromyogram
- Apnea, central sleep Sleep (CSA): Sleep apnea is a breathing disorder characterized by brief interruptions of breathing during…
- Zone Diet The Zone diet is a weight loss plan based upon the idea that the right ratio of carbohydrates to proteins and…