An operational definition is generally designed to model a theoretical definition. The most operational definition is a process for identification of an object by distinguishing it from its background of empirical experience.
2 votes Vote for this answer. King of Metals. Gold, which is not only the most valuable of metals, but also is without its peer in freedom from alloy. It is got without smelting; wherever it exists it is visible to the eye; and it consorts with little else than pure silver. Even with this precious alloy, the pure metal ranges from sixty to ninety-nine per cent.
The Overlord was the creator of the Stone Army and the original source of all Darkness in the world of Ninjago. A sinister dark entity, the Overlord first appeared as a manifestation of Darkness itself that challenged the First Spinjitzu Master to battle for the fate of Ninjago.