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indium

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in⋅di⋅um

[in-dee-uhm]
–noun Chemistry.
a rare metallic element, soft, white, malleable, and easily fusible, found combined in various ore minerals, esp. 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; < NL, equiv. to ind(icum) indigo + -ium -ium
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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in·di·um   (ĭn'dē-əm)   
n.   Symbol In
A soft, malleable, silvery-white metallic element found primarily in ores of zinc and tin, used as a plating over silver in making mirrors, in plating aircraft bearings, and in compounds for making transistors. 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 Table at element.

[ind(igo) + -ium (so called from the indigo-blue lines in its spectrum).]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: in·di·um
Pronunciation: 'in-dE-&m
Function: noun
: a malleable fusible silvery metallic element that is chiefly trivalent,occurs especially in sphalerite ores, and is used as a plating for bearings, in alloys having a low melting point, and in making transistors —abbreviation In; —see ELEMENT table
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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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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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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