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).
Dizziness, pre-syncopal
Dizziness before fainting. Some symptoms of dizziness such as wooziness, feeling about to black out, and tunnel vision may be pre-syncopal and are due to insufficient blood flow to the brain. These symptoms are typically worse when…
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Show more- Category five hurricane A hurricane with winds greater than 155 mph (135 kt or 249 km/hr). Storm surge generally greater than 18 ft…
- Xanthoma, planar A type of xanthoma characterized by flat yellow-to-orange patches or pimples that cluster together on the skin
- Cerebral herniation The abnormal protrusion of brain tissue through an opening when there is increased intracranial pressure…
- Fat 1 Along with proteins and carbohydrates, one of the three nutrients used as energy sources by the body. The…
- Thelarche The beginnings of breast development at puberty. Thelarche is now a normal event at an earlier age (e.g., age…
- Cat scratch fever A bacterial infection due to a cat scratch seen most often today in people with HIV. The disease…
- Disease, Pick Disease, Pick: A form of dementia characterized by a slowly progressive deterioration of social skills and…
- ALMS1 A gene on chromosome 2p13. Alstrom syndrome is caused by mutation of ALMS1
- Keshan disease Condition caused by deficiency of the essential mineral selenium. Keshan disease is a potentially fatal form…
- Chin Medically, the mentum. The lower portion of the face below the lower lip including the prominence of the…
- EPR Abbreviation for Electrophrenic respiration. Also known as diaphragm pacing. See: Diaphragm pacing
- Dystrophica myotonia 2 See: Myotonic dystrophy type 2