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).
Compound microscope
A microscope which consists of two microscopes in series, the first serving as the ocular lens (close to the eye) and the second serving as the objective lens (close to the object to be viewed). Credit for creating the compound microscope…
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Show more- Hepatitis C Hepatitis C: Inflammation of the liver due to the hepatitis C virus (HCV), which is usually spread by blood…
- Pericardium, visceral The inner layer of the pericardium, a conical sac of fibrous tissue that surrounds the heart and the roots of…
- National board exams The National board exams in medicine refer to the United States Medical Licensing Examination (USMLE). This…
- Disease, exaggerated startle A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Care, managed See: Managed care
- Upregulation An increase in the number of receptors on the surface of target cells, making the cells more sensitive to a…
- Hirsutism Having an overabundance of hair. A person with hirsutism is said to be hirsute (pronounced hir-suit)…
- Attenuated FAP Attenuated familial adenomatous polyposis
- Syndrome, Brown An ophthalmology (eye) problem. Brown syndrome is an abnormality that is present at birth (congenitally) and…
- Yellow fever An acute systemic (bodywide) illness caused by a virus called a Flavivirus. In severe cases, the viral…
- Syndrome, polyglandular autoimmune (PGA) A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…
- Growth and differentiation factor 8 Also called myostatin. See: Myostatin