Definition of indium in English:

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Pronunciation: /ˈɪndɪəm/


[mass noun]
The chemical element of atomic number 49, a soft silvery-white metal occurring naturally in association with zinc and some other metals. (Symbol: In)
Example sentences
  • These elements include mercury, bromine, cadmium, indium, thallium, lead, and bismuth.
  • Their catalyst is a solid solution of zinc sulfide, copper indium sulfide, and silver indium sulfide.
  • Lead alloyed with tin, bismuth, cadmium, indium, or other elements, either alone or in combination, forms alloys with particularly low melting points.


Mid 19th century: from indigo (because there are two characteristic indigo lines in its spectrum) + -ium.

For editors and proofreaders

Line breaks: in¦dium

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