Weighted dice are dice where the weight is altered to make them more likely to land with a certain side down in order to produce a particular result. Casino dice are dice that are engineered to have each side give a 1/6 chance to a fraction of a percent margin of error. They are literally the opposite in intent and design to weighted dice, if you can't see this then you are even more of a moron than I thought.
To put it in simple terms even you may be able to understand:
Weighted dice: Weight is unevenly distributed to favour a particular result.
Casino dice: Weight is evenly distributed so there is no favour to a particular result.