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).
Nearsightedness
The ability to see near objects more clearly than distant objects. Also called myopia . Myopia can be caused by a longer-than-normal eyeball or by any condition that prevents light rays from focusing on the retina. Most forms of myopia can…
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Show more- Beryllium A toxic metal found in ores containing other elements that is used in making metal alloys for nuclear…
- Trans fatty acid An unhealthy substance, also known as trans fat, made through the chemical process of hydrogenation of oils…
- Onychoosteodysplasia This is the nail-patella syndrome, an hereditary condition characterized by abnormally formed (dysplastic) or…
- Reduction division The first cell division in meiosis, the process by which germ cells are formed. A unique event in which the…
- Muscular dystrophy, Ullrich congenital A disorder evident at birth characterized by muscle weakness, contractures of multiple joints, and…
- GD Gaucher's disease
- Placebo effect A positive medical response to taking a placebo, a sham medication as if it were an active medication. Up to…
- Pelizaeus-Merzbacher-like disease A disease that is virtually identical to Pelizaeus-Merzbacher disease (PMD) but without a mutation in the…
- Hormone, aldosterone A hormone made by the outer portion (cortex) of the adrenal gland that regulates the balance of salt and…
- Device, medical See: Medical device
- Undulant fever An infectious disease due to the bacteria Brucella that characteristically causes rising and falling fevers…
- Drugs, statin A class of drugs that lower cholesterol. There are currently at least 5 statin drugs on the market in the…