titanium

American

[tahy-tey-nee-uhm] / taɪˈteɪ ni əm /

noun

Chemistry.

a 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. Ti; 47.90; 22; 4.5 at 20°C.

titanium British

/ taɪˈteɪnɪəm /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

titanium Scientific

/ tī-tā′nē-əm /

A shiny, white metallic element that occurs in all kinds of rocks and soils. It is lightweight, strong, and highly resistant to corrosion. Titanium alloys are used especially to make parts for aircraft and ships. Atomic number 22; atomic weight 47.87; melting point 1,660°C; boiling point 3,287°C; specific gravity 4.54; valence 2, 3, 4.
See Periodic Table

Etymology

Origin of titanium

< New Latin (1795); Titan, -ium

Vocabulary lists containing titanium

Common Chemical Elements

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In alloys, a big name is ATI, a maker of high-performance titanium, nickel-based, and other alloys.

From Barron's • Apr. 13, 2026

They include companies like Chemours and Tronox, which make titanium dioxide, a pigment used in paint and wallpaper, and Celanese, which produces acetic acid, a key ingredient in many industrial products.

From The Wall Street Journal • Apr. 5, 2026

There are metals too, like iron and titanium, and also helium, which is used in everything from superconductors to medical equipment.

From BBC • Mar. 29, 2026

They discovered a clear relationship between a rock's titanium content and the strength of its recorded magnetism.

From Science Daily • Feb. 26, 2026

“But I guess Aluminum Man isn’t appropriate either, since he’s also made of titanium, steel, plastic, various polymers, and silicon computer chips.”

From "Ungifted" by Gordon Korman

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023