titanium

titanium

[tahy-tey-nee-uhm]
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. Symbol: Ti; atomic weight: 47.90; atomic number: 22; specific gravity: 4.5 at 20°C.

Origin:
< Neo-Latin (1795); see Titan, -ium

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World English Dictionary
titanium (taɪˈteɪnɪəm)
 
n
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
 
[C18: New Latin; see Titan, -ium]

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Etymonline
Word Origin & History

titanium
1796, from Mod.L., named by Klaproth, 1795, from L. Titan (see titan). He had previously named uranium.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

titanium ti·ta·ni·um (tī-tā'nē-əm, tĭ-)
n.
Symbol Ti
A strong, low-density, highly corrosion-resistant metallic element that occurs widely in igneous rocks. Atomic number 22; atomic weight 47.88; melting point 1,668°C; boiling point 3,287°C; specific gravity 4.54; valence 2, 3, 4.

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Science Dictionary
titanium   (tī-tā'nē-əm)  Pronunciation Key 
Symbol Ti
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.
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