indium

[in-dee-uhm]

in·di·um

[in-dee-uhm]
noun Chemistry.
a rare metallic element, soft, white, malleable, and easily fusible, found combined in various ore minerals, especially sphalerite: so called from the two indigo-blue lines in its spectrum. Symbol: In; atomic weight: 114.82; atomic number: 49; specific gravity: 7.3 at 20°C.

Origin:
1860–65; < Neo-Latin, equivalent to ind(icum) indigo + -ium -ium
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Indium is always a great word to know.
So is catalyst. Does it mean:
to produce or obtain one substance from another
a substance that causes a chemical reaction without itself being affected
Collins
World English Dictionary
indium (ˈɪndɪəm)
 
n
a rare soft silvery metallic element associated with zinc ores: used in alloys, electronics, and electroplating. Symbol: In; atomic no: 49; atomic wt: 114.82; valency: 1, 2, or 3; relative density: 7.31; melting pt: 156.63°C; boiling pt: 2073°C
 
[C19: New Latin, from indigo + -ium]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

indium in·di·um (ĭn'dē-əm)
n.
Symbol In
A soft malleable metallic element found primarily in ores of zinc. Atomic number 49; atomic weight 114.82; melting point 156.60°C; boiling point 2,100°C; specific gravity 7.31; valence 1, 2, 3.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
indium   (ĭn'dē-əm)  Pronunciation Key 
Symbol In
A soft, malleable, silvery-white metallic element that occurs mainly in ores of zinc and lead. It is used in the manufacture of semiconductors, in bearings for aircraft engines, and as a plating over silver in mirrors. Atomic number 49; atomic weight 114.82; melting point 156.61°C; boiling point 2,080°C; specific gravity 7.31; valence 1, 2, 3. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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