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).
Endocardium
The lining of the interior surface of the heart chambers. The endocardium consists of a layer of endothelial cells and an underlying layer of connective tissue
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Show more- Chylomicron A small fat globule composed of protein and lipid (fat). Chylomicrons are found in the blood and lymphatic…
- Anterior pituitary The front portion of the pituitary, a small gland in the head called the master gland. Hormones secreted by…
- Cranial nerve, first The cranial nerves emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge…
- Blood The familiar red fluid in the body that contains white and red blood cells, platelets, proteins, and other…
- Lactic acidosis Acidosis (too much acid in the body) due to the buildup of lactic acid in the body. Lactic acidois occurs…
- Score, Apgar A practical method to assess a newborn infant, the Apgar score is a number arrived at by scoring the heart…
- Arachnophobia An abnormal and persistent fear of spiders. Sufferers from arachnophobia experience undue anxiety even though…
- Delirium tremens A neurological symptom of alcohol withdrawal seen in chronic alcoholism, with includes symptoms of psychosis…
- Ligament, medial collateral knee The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- Immunization, children's >Hepatitis B >Diphtheria, tetanus, pertussis >Haemophilus influenzae type B (HIB) >Poliovirus >Measles…
- Polycystic ovary syndrome Abbreviated PCOS. Polcystic ovary syndrome is a condition in women characterized by irregular or no menstrual…
- Cervical rib >True ribs: The first seven ribs attach to the sternum (the breast bone) in the front and are known as true…