The insert/overtype mode toggling is not global for the computer or even for a single application but rather local to the text input window in which the Insert key was pressed.
Wiktionary (0.00 / 0 votes) Rate this definition: high fructose corn syrup (Noun). Any of many corn syrups that has undergone an enzymatic processing to convert some of its glucose into fructose to produce a desired sweetness. Origin: high + fructose + corn syrup.
That's because despite the name, high-fructose corn syrup is chemically similar to other widely used sweeteners, including table sugar (sucrose), honey, and even sweeteners made from concentrated fruit juices. All contain glucose and fructose in roughly equal amounts.