"Turning yellow" is an idiomatic expression used to describe the process or occurrence when something changes in color, predominantly to a shade or hue of yellow. It typically refers to an object or substance that originally possessed a different color, but over time, exposure to external factors or natural aging result in it acquiring a distinct yellowish hue.
This phenomenon can be observed in various contexts and circumstances. For instance, in the context of food, fruits or vegetables may undergo a natural ripening process where their original color changes from green or another shade to yellow. Similarly, flowers may also undergo a similar transformation, starting from their initial vibrant colors to a yellowish complexion, indicating signs of aging or deterioration.
In a more general sense, "turning yellow" can also refer to the color change observed in various materials due to exposure to external factors such as sunlight or chemicals. These factors can cause certain objects or substances made of fabric, paper, plastic, or even metals to gradually lose their original pigmentation and assume a yellowish appearance.
Overall, "turning yellow" is a widely used expression to depict the transformation or color shift occurring in various materials, objects, or substances, particularly when they transition from their original color to a shade of yellow caused by natural aging, exposure to light, or other external influences.
