Powder used in television tubes, Oxide used in television tubes

Now we are looking on the crossword clue: Powder used in television tubes, Oxide used in television tubes.
it’s A 63 letters crossword puzzle definition. See the possibilities below.

Did you find what you needed?

We hope you did!. If you are still unsure with some definitions, don’t hesitate to search them here with our crossword puzzle solver.

Possible Answers: YTTRIA.