indium(redirected from Element 49)
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n. Symbol In
A soft, malleable, silvery-white metallic element found primarily in ores of zinc and tin, used in making fusible alloys, in plating aircraft bearings and mirrors, and in compounds for making liquid crystal displays and transistors. Atomic number 49; atomic weight 114.82; melting point 156.60°C; boiling point 2,072°C; specific gravity 7.31; valence 1, 2, 3. See Periodic Table.
(Elements & Compounds) 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]
in•di•um(ˈɪn di əm)
a rare metallic element that is soft, white, malleable, and easily fusible, is found combined in various ore minerals, esp. sphalerite, and has two indigo-blue lines in its spectrum. Symbol: In; at. wt.: 114.82; at. no.: 49; sp. gr.: 7.3 at 20°C.
Symbol In A soft, easily shaped, silvery-white metallic element that occurs mainly in ores of zinc and lead. It is used in the manufacturing of semiconductors and bearings for aircraft engines and as a plating over silver in making mirrors. Atomic number 49. See Periodic Table.
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|Noun||1.||indium - a rare soft silvery metallic element; occurs in small quantities in sphalerite|
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.