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).
Fear of cold
An abnormal and persistent fear of cold, including cold weather and cold objects. Sufferers of this fear experience undue anxiety even though they realize their fear is irrational. To avoid cold, they may live in a warm climate, dress more…
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Show more- Color hearing A form of chromesthesia in which hearing a musical tone elicits the perception of a color. In one case, an…
- Hirudotherapy The use of leeches for medical therapy. Sometimes referred to as the 'treatment that sucks.' From hirudin…
- Gastroparesis Gastroparesis: Gastroparesis is a medical condition in which the muscle of the stomach is paralyzed by a…
- Erection, penile When the penis fills with blood and is rigid. The penis contains two chambers, called the corpora cavernosa…
- Hypocarbia Less than the normal level of carbon dioxide in the blood. The opposite of hypercarbia
- Carcinoembryonic antigen Carcinoembryonic antigen: Carcinoembryonic antigen (CEA) is a protein found in many types of cells but…
- Locked-in syndrome A neurological disorder characterized by complete paralysis of voluntary muscles in all parts of the body…
- Flavin-containing monooxygenase-3 (FMO3) See Fish-odor syndrome
- Mismatch repair A system within the cell for correcting errors in DNA that works by detecting and replacing bases in the DNA…
- Nictitate To wink. Nictitating spasm is spasm of the eyelid with continuous winking. 'Nictitate' and the older verb…
- Retinoschisis, juvenile See: Juvenile retinoschisis
- Drug caution codes Abbreviations on medications that indicate caution. While not a part of the historical heritage of ancient…