Relating to or containing tin, especially with a valence of four.
The word stannic is used in chemistry to talk about tin and its compounds.
Examples:
The stannic compound is used in making some kinds of glass.
The stannic oxide is a white solid.
The stannic element is very useful.
I don't think the stannic metal is strong enough.
The stannic roof will never break.
The stannic box is very heavy.