Term: ageing

The term "ageing" refers to the process of becoming older or undergoing changes over time. It can apply to living organisms, materials, or systems. The specific meaning depends on the context:

1. Biological Ageing: In living organisms, ageing is the natural process of physical and functional decline over time, often marked by reduced regenerative capacity, increased vulnerability to disease, and eventual death.

2. Material Ageing: In materials (such as paint, timber, or metal), ageing refers to the gradual deterioration or change in properties due to exposure to environmental factors like sunlight (UV radiation), moisture, temperature fluctuations, and chemical reactions. For example, paint may fade, crack, or peel as it ages.

3. Product or Asset Ageing: In business or asset management, ageing can refer to the length of time an item has been in use or in inventory, which may affect its value, performance, or need for replacement.

In the context of painting and construction in Australia, ageing often refers to the visible and structural changes in surfaces and coatings over time, which may require maintenance, repainting, or restoration.