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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Fever, relapsing
See: Relapsing fever
Read the definitionRandom terms
Show more- Velpeau hernia Hernia: A hernia in the groin in front of the femoral blood vessels. A hernia ('rupture') is a protrusion of…
- Dorian Gray effect Sudden aging, an abrupt change from seeming youthfulness to the reality and ravages of age, as can occur…
- Moyamoya A pattern of progressive obstructive and occlusive cerebral arteritis (inflammation of the cerebral arteries…
- Overactive bladder Overactive bladder: A sudden involuntary contraction of the muscular wall of the bladder causing urinary…
- DTaP Diphtheria-Tetanus-acellular Pertussis vaccine
- Radiography Film records (radiographs) of internal structures of the body. Radiography is made possible by X-rays (or…
- Hemorrhagic cyst This type of functional cyst occurs when bleeding occurs within a cyst. Symptoms such as abdominal pain on…
- Opportunistic condition A condition that occurs especially or exclusively in persons with a weak immune system due, for example, to…
- Regurgitation A backward flowing. For example, of food. Or the sloshing of blood back into the heart (or between chambers…
- Fiber, elastic See: Elastic fiber
- Pandemic An epidemic (a sudden outbreak) that becomes very widespread and affects a whole region, a continent, or the…
- Tympanum In anatomy, the drum of the ear, the eardrum, the tympanic membrane. The tympanum resembles the head of a…