Built-in context Dictionary in SM-T705, yes it's here! topic

I just recognized that my M-T705 has the long missed integrated dictionary lookup like in iOS.
If you just long press a word in the standard browser or any other text application, the Android context menu pops up with a "Dictionary" button.
My Android is the original and unmodified 4.4.2

But on my other Galaxy phablets and phones, this function is not available, even if the Android version is 4.4.2 too.

I also cannot find anything on the nternet about that function, except that many people desire it for a long time already.

So where the hell is this coming from and since when?

Cheers
Hikanio