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).
Exaggerated startle disease
A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction). This disorder was not recognized until 1962 when it was described by Drs. Kok and Bruyn as a disease with the onset at birth of…
Read the definitionRandom terms
Show more- Antonomasia 1. The substitution of a title for a proper name, as in addressing a physician as 'Doctor' or a nurse as…
- Fourth stage of labor The hour or two after delivery when the tone of the uterus is established and the uterus contracts down again…
- Fever, epidemic hemorrhagic A number of diseases characterized by an abrupt onset of high fever and chills, headache, cold and cough, and…
- Chromatin remodelling See: Chromatin remodeling
- Aortic regurgitation The return of blood from the aorta into the left ventricle of the heart due to aortic insufficiency…
- PFOA Perfluorooctanoic acid. See: Perfluorinated acid
- Postmaturity Overly mature, overly developed, especially as regards a baby. A baby born 2 weeks (14 days) or more after…
- Aortic aneurysm An outpouching (a local widening) of the largest artery in the body, the aorta, involving that vessel in its…
- Samaritan See Good Samaritan
- Hantavirus A group of viruses that cause hemorrhagic fever and pneumonia. The Hantaviruses include the Hantaan virus…
- Macrovascular disease Disease of the large blood vessels, including the coronary arteries, the aorta, and the sizable arteries in…
- Genotoxin A poisonous substance which damages DNA. A genotoxin can cause mutations in DNA (and so be a mutagen), it can…