Of titanium with a valency of four; of titanium(iv).
Usage examples:
It has been permitted to form a joint venture for the manufacture of synthetic rutyl and titanic di…
proper noun
A british passenger liner, the largest ship in the world when she was built and supposedly unsinkable, that struck an iceberg in the north atlantic on her maiden voyage in april 1912 and sank with the loss of 1,490 lives.