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⇱ titanium - WordReference.com Dictionary of English

titanium

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/taɪˈteɪniəm/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/taɪˈteɪniəm/ ,USA pronunciation: respelling(tī tā′nē əm)


WordReference Random House Learner's Dictionary of American English © 2026
ti•ta•ni•um /taɪˈteɪniəm/USA pronunciation   n. [uncountable]
  1. Chemistrya dark gray or silvery, shiny, very hard, light, metallic element that resists corrosion, used to toughen steel.

WordReference Random House Unabridged Dictionary of American English © 2026
ti•ta•ni•um  (tī tā′nē əm),USA pronunciation n. [Chem.]
  1. Chemistrya dark-gray or silvery, lustrous, very hard, light, corrosion-resistant, metallic element, occurring combined in various minerals: used in metallurgy to remove oxygen and nitrogen from steel and to toughen it. Symbol: Ti;
    at. wt.: 47.90;
    at. no.: 22;
    sp. gr.: 4.5 at 20°C.
  • Neo-Latin (1795); see Titan, -ium

Collins Concise English Dictionary © HarperCollins Publishers::
titanium /taɪˈteɪnɪəm/ n
  1. a strong malleable white metallic element, which is very corrosion-resistant and occurs in rutile and ilmenite. It is used in the manufacture of strong lightweight alloys, esp aircraft parts. Symbol: Ti; atomic no: 22; atomic wt: 47.88; valency: 2, 3, or 4; relative density: 4.54; melting pt: 1670±10°C; boiling pt: 3289°C
Etymology: 18th Century: New Latin; see Titan, -ium
'titanium' also found in these entries (note: many are not synonyms or translations):
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