Adjacent Words

indium definitions

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WordNet (r) 3.0 (2005)

n
1: a rare soft silvery metallic element; occurs in small quantities in sphalerite [syn: indium, In, atomic number 49]

Merriam Webster's

noun Etymology: International Scientific Vocabulary ind- + New Latin -ium Date: 1864 a silvery malleable fusible chiefly trivalent metallic element that occurs especially in sphalerite ores and is used especially as a plating material, in alloys, and in electronics — see element table

Dictionary of the Elements

indium
Symbol: In
Atomic number: 49
Atomic weight: 114.82
Soft silvery element belonging to group 13 of the periodic table. The most common natural isotope is In-115, which has a half-life of 6*10^4 years. Five other radioisotopes exist. Discovered in 1863 by Reich and Richter.

Oxford Reference Dictionary

n. Chem. a soft silvery-white metallic element occurring naturally in zinc blende etc., used for electroplating and in semiconductors. Usage: Symb.: In. Etymology: L indicum indigo with ref. to its characteristic spectral lines

Webster's 1913 Dictionary

Indium In"di*um, n. [NL. See Indigo.] (Chem.) A rare metallic element, discovered in certain ores of zinc, by means of its characteristic spectrum of two indigo blue lines; hence, its name. In appearance it resembles zinc, being white or lead gray, soft, malleable and easily fusible, but in its chemical relation it resembles aluminium or gallium. Symbol In. Atomic weight, 113.4.