Lipidaemia is a medical condition characterized by an increased level of lipids in the blood. There are several synonyms for this condition such as hyperlipidemia, dyslipidaemia, and hyperlipoproteinemia. Hyperlipidemia is a term used when there is an increased level of lipids in the body, which includes cholesterol, triglycerides, and lipoproteins. Dyslipidaemia refers to an abnormal level of lipids in the blood, usually implying a high level of "bad" cholesterol (LDL). Hyperlipoproteinemia refers to an increased level of lipoproteins in the blood, which carry cholesterol and triglycerides. All these synonyms are interchangeable and are used for the same medical condition. High levels of lipids in the blood can lead to heart disease, stroke, and other health complications, so it is essential to monitor and manage the condition.