irid-osmium

- 1 dictionary result

ir⋅i⋅dos⋅mine

[ir-i-doz-min, -dos-, ahy-ri-]

–noun

a native alloy of iridium and osmium, usually containing some rhodium, ruthenium, platinum, etc., used esp. for the points of gold pens.

Also, ir⋅i⋅dos⋅mi⋅um [ir-i-doz-mee-uh

m, -dos-, ahy-ri-]

Also called osmiridium.

Origin:
1820–30; irid- + osm(ium) + -ine ²

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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