An acid-base indicator which is colorless in acid solution, but turns pink to red as the solution becomes alkaline. It is used medicinally as a cathartic.
Toggle Key
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A toggle key toggles the input from a group of keys on a keyboard between two different input modes. The most common toggle key is Caps Lock, which toggles the letter keys between lowercase and uppercase mode. Some keyboards also have other toggle keys, such as Num Lock, Scroll Lock, and Insert. Below is a list of toggle keys and their functions.
Toggle Key meaning & definition 1 of Toggle Key.
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