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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Membrane attack complex
Abbreviated MAC. An abnormal activation of the complement (protein) portion of the blood, forming a cascade reaction that brings blood proteins together, binds them to the cell wall, and then inserts them through the cell membrane. MAC…
Read the definitionRandom terms
Show more- Kinder-cam See: Kiddie cam
- Pediatric renal infection See: Urinary tract infection in children
- Preventive medicine Medicine designed to avert and avoid disease. Screening for hypertension and treating it before it causes…
- Vitamins >Vitamin A: Retinol. Carotene compounds responsible for transmitting light sensation in the retina of the…
- Postmenopause The period of time after the menopause. The postmenopause is formally defined as the time after which a woman…
- Pasteur Institute A non-profit private foundation which contributes to the prevention and treatment of disease, primarily…
- Opportunistic microorganism A bacteria, virus, or fungus that takes advantage of certain opportunities to cause disease. Those…
- Yersinia enterocolitica A bacterium that causes an infectious disease called yersiniosis. Yersinia enterocolitica is a member of the…
- Epinephrine A substance produced by the medulla (inside) of the adrenal gland. The name epinephrine was coined in 1898 by…
- Anesthetic A substance that causes lack of feeling or awareness. A local anesthetic causes loss of feeling in a part of…
- Macular cyst A hole in the macula, the tiny oval area made up of millions of nerve cells located at the center of the…
- BF Abbreviation for 'black female' used by doctors as shorthand when jotting down the results of their physical…