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).
Necrosis
The death of living cells or tissues. Necrosis can be due, for example, to ischemia (lack of blood flow). From the Greek 'nekros' (dead body).
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Show more- Nasogastric tube A tube that is passed through the nose and down through the nasopharynx and esophagus into the stomach…
- Miosis Contraction of the pupil. The opposite of mydriasis.
- Tonsillectomy Tonsillectomy: The surgical removal of both tonsils. A tonsillectomy may be performed in cases of recurrent…
- Meuse fever Fever: Named for the Meuse River area, one of the great battlegrounds of World War I. Also known as trench…
- Diffuse degeneration of gray matter with cirrhosis Ic cirrhosis, Alpers: A progressive disease of the nervous system characterized by spasticity (tightness)…
- Sigmoid In human anatomy, the lower colon (the lower portion of the large bowel). 'Sigmoid' is short for 'sigmoid…
- Protocol, Bruce See: Bruce protocol
- Comedo The primary sign of acne consisting of a dilated (widened) hair follicle filled with keratin squamae (skin…
- Spirometry A test of the air capacity of the lung. The test utilizes a machine called a spirometer to measure the volume…
- Gallium A rare metal with the atomic weight of 69. There are several isotopic forms of gallium that differ from it in…
- Human Genome Research Institute, National RI): One of the newest of the National Institutes of Health (NIH), NHGRI's mission in formal terms is to…
- Funnel chest (pectus excavatum) 'Caved-in' chest. Usually an unimportant isolated finding evident at birth. (Funnel chest can occasionally be…