Medical Definition of fatty liver
1: an abnormal condition of the liver that is marked by excess accumulation of lipids (such as triglycerides) in the hepatocytes and is typically associated with obesity, malnutrition, rapid weight loss, excessive alcohol consumption, high levels of fat in the blood, diabetes, or toxins ◆Fatty liver is often asymptomatic and benign but may progress to fibrosis and liver failure.
2: a liver affected with fatty liver
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