MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Thoracic aneurysm
A local widening and bulging of a vessel (an aneurysm) within the thorax (chest). See: Aortic aneurysm. An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is typically a…
Read the definitionRandom terms
Show more- Selfish operon A hypothesis according to which the clustering of genes and their subsequent organization into operons is…
- Esophagogastric tamponade A procedure in which a balloon is inflated within the esophagus and stomach to apply pressure on bleeding…
- Medigap policy In the US, a Medicare supplement insurance policy sold by private insurance companies to fill 'gaps' in…
- Hoarseness Hoarseness: Hoarseness is a term referring to abnormal voice changes. Hoarseness may be manifested as a voice…
- Foot-drop Dropping of the front of the foot due to weakness or paralysis of the anterior muscles of the lower leg…
- Clot, blood See Blood clot
- PX Medical abbreviation for prognosis
- NIAMS Stands for National Institute of Arthritis and Musculoskeletal and Skin Diseases, one of the National…
- Passage, nasal The walls of the nasal passages are coated with respiratory mucous membranes which contain innumerable tiny…
- Anus The opening of the rectum to the outside of the body. The word 'anus' comes straight from the Latin. It…
- Disease, clinical A disease with clinical signs and symptoms that can be recognized. As distinct from a subclinical illness…
- Morton's foot See: Morton's neuroma