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Definition of: iridium

(i·rid′ē·əm, ī-) noun
A brittle, silver–gray, metallic element (symbol Ir) of extreme hardness belonging to the platinum group: discovered by William Tennant in 1904. It is used in certain alloys, for penpoints, jewelry, etc. [<NL <L iris, iridis rainbow <Gk. Iris goddess of the rainbow + -IUM; from the iridescence of some of its salts]

Most often used phrases:

iridium
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osmium iridium
ir iridium
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iridium layer

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Statistical data

"iridium" has the frequency of use of 0.0001% on en.wikipedia.org.

Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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