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).
Refractory
Not yielding (at least not yielding readily) to treatment
Read the definitionRandom terms
Show more- Ear, inner There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The inner…
- Headache, hypnic See: Hypnic headache
- Medulla, adrenal The inner portion of adrenal gland. (The outer portion is the adrenal cortex). The adrenal medulla makes…
- Immune thrombocytopenic purpura A blood disorder characterized by the destruction of blood platelets due to the presence of antiplatelet…
- Cashew allergy Allergy: An allergic reaction to cashew nuts. Cashew allergy can be isolated, meaning that the individual is…
- Antisense In molecular biology, the strand complementary to a coding sequence of a nucleic acid. Antisense DNA is the…
- Rib cage The structure formed by the thoracic vertebrae and ribs, the sternum (breastbone), and the costal cartilages…
- Syndrome, hypoplastic left heart A form of congenital heart disease in which the whole left half of the heart (including the aorta , aortic…
- Spasmodic dysphonia A voice disorder caused by involuntary movements of one or more muscles of the larynx or voice box. People…
- Dementia complex, AIDS See: AIDS dementia complex
- Voiding cystourethrography A procedure done to examine the bladder and urethra while the bladder fills and empties. A radiopaque liquid…
- Ventilation, mechanical Use of a machine called a ventilator or respirator to improve the exchange of air between the lungs and the…