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).
Memory span
The number of items, usually words or numbers, that a person can retain and recall. Memory span is a test of working memory (short-term memory). In a typical test of memory span, an examiner reads a list of random numbers aloud at about…
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Show more- RDIs (Reference Daily Intakes) Formerly known as hyaline membrane disease, a syndrome of respiratory difficulty in newborn infants caused by…
- Pregnancy, hyperemesis of Excessive vomiting during pregnancy which, by definition, leads to the loss of 5% or more of the body weight…
- Vomer A triangular bone in the nasal septum. The bone was so named because it was thought to look like a…
- NAME syndrome Acronym for Nevi, Atrial myxoma, Myxoid neurofibroma, and Ephelides. Now included in the Carney complex. See…
- Bromism A disease caused by chronic exposure to bromine or one of its compounds. Bromism is characterized by mental…
- Vaginitis, atrophic Thinning of the lining (the endothelium) of the vagina due to decreased production of estrogen. This may…
- Acellular Not made up of cells or divided into cells. Or lacking intact cells as, for example, an acellular vaccine…
- Electron microscope Abbreviated EM. Microscopy in which an electron beam replaces light to form the image. EM has its pluses…
- Syndrome, stiff baby A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Histo spot A small circular punched-out spot in the retina at a site where spores of the fungus histoplasma (histo)…
- Contraceptive, minipill A form of oral contraceptive taken daily, like combined oral contraceptives (the 'pill'), but containing only…
- Medical Repository The first medical magazine and the first scientific journal published in the United States. The Medical…