TITANIUM
titanium, Ti, atomic number
(noun) a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
Source: WordNet® 3.1
Etymology
Noun
titanium (countable and uncountable, plural titaniums)
A chemical element, atomic number 22; it is a strong, corrosion-resistant transition metal, used to make light alloys for aircraft etc.
(countable) A single atom of this element.
Source: Wiktionary
Ti*ta"ni*um, n. Etym: [NL., fr. L. Titani or Titanes, Gr. (Chem.)
Definition: An elementary substance found combined in the minerals
manaccanite, rutile, sphene, etc., and isolated as an infusible iron-
gray amorphous powder, having a metallic luster. It burns when heated
in the air. Symbol Ti. Atomic weight 48.1.
Source: Webster’s Unabridged Dictionary 1913 Edition