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).
Over-the-counter (OTC) drug
A drug for which a prescription is not needed
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Show more- Histiocytosis, Letterer Siwe A severe disease in which histiocytes start to multiply and attack the tissues or organs of the patient…
- Jet lag Jet lag: A temporary disorder that causes fatigue, insomnia, and other symptoms as a result of rapid air…
- LVRS Lung volume reduction surgery. See: Lung reduction surgery
- Infantile genetic agranulocytosis Children born with this condition lack neutrophils (a type of white blood cell that is important in fighting…
- Epizootic An epidemic outbreak of disease in an animal population, often with the implication that it may extend to…
- Peroneal muscular atrophy See: Charcot-Marie-Tooth disease
- Pestilence The pestilence referred to the bubonic plague and it now refers to any epidemic disease that is highly…
- Myocyte, cardiac See: Cardiac myocyte
- Roundworm A type of parasitic worm that hatches in the intestines and lives there. The eggs of the roundworm usually…
- Small saphenous vein The smaller of the two saphenous veins, the principal veins that run up the leg superficially (near the…
- Nonsteroidal anti-inflammatory drug Nonsteroidal anti-inflammatory drug: A type of drug commonly prescribed for the treatment of inflammation of…
- Foodborne disease A disease caused by consuming contaminated food or drink. Myriad microbes and toxic substances can…