• WordNet 3.6
    • n iridosmine a hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum); used in needles and pen nibs etc.
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Webster's Revised Unabridged Dictionary
    • n Iridosmine (Min) The native compound of iridium and osmium. It is found in flattened metallic grains of extreme hardness, and is often used for pointing gold pens.
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Century Dictionary and Cyclopedia
    • n iridosmine Same as iridosmium.
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Webster's Revised Unabridged Dictionary
Irid,ium + osmium,


In literature:

Platinum and the allied compound metal iridosmine have been found in New South Wales, but so far in inconsiderable quantities.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 8" by Various