titanium

American  

[tahy-tey-nee-uhm] / taɪˈteɪ ni əm /

noun

Chemistry.

1. 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.

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titanium British  

/ taɪˈteɪnɪəm /

noun

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

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titanium Scientific  

/ tī-tā′nē-əm /

1. 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.

2. See Periodic Table

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Etymology

Origin of titanium

< New Latin (1795); Titan, -ium

Example Sentences

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

The team successfully applied this method to six types of MXenes, including two forms of titanium carbide, as well as niobium carbide, vanadium carbide, tantalum carbide, and titanium carbonitride.

From Science Daily • Mar. 31, 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

Sales of titanium dioxide, used in white paint, and related products fell 11% year over year, to $561 million, while earnings before interest, taxes, depreciation, and amortization, or Ebitda, dropped 67% to $23 million.

From Barron's • Feb. 20, 2026

The LEP tech boys, under Foaly’s guidance, had fashioned titanium eggs that could ride on the currents.

From "Artemis Fowl" by Eoin Colfer