Transitional Metal Used in Missiles and Aircraft

This page is the CodyCross answer for the clue below from Extraordinary Creatures, Group 1593, Puzzle 2 (Victoria Crowned Pigeon).

Question is: Transitional Metal Used in Missiles and Aircraft

and the answer is: TANTALUM

Word Meaning:

TANTALUM — A chemical element (symbol Ta) with atomic number 73: a rare, hard, blue-gray, lustrous transition metal that is highly corrosion-resistant.

Definitions from Wiktionary.

Transitional metal used in missiles and aircraft — CodyCross Answer | CodyCross Solutions