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); see Titan, -ium

Example Sentences

Titanium is involved in two value chains, the first for defense, industrial and medical applications.

From MarketWatch • Feb. 12, 2026

James Vernon did not even hear the Ford Galaxy Titanium, driven by 54-year-old Paul Doyle, coming before he was struck from behind on 26 May.

From BBC • Dec. 14, 2025

Titanium dioxide sales decreased by 9% to $612 million, with pricing down 8%, while refrigerant sales increased by 20% to $560 million.

From Barron's • Nov. 7, 2025

The chemical company gave investors a disappointing sales forecast for its Titanium Technologies segment.

From Seattle Times • Mar. 28, 2024

Titanium is a very widely distributed element in nature, being found in almost all soils, in many rocks, and even in plant and animal tissues.

From An Elementary Study of Chemistry by McPherson, William