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iridosmine |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Iridosmine \Ir`i*dos"mine\, Iridosmium \Ir`i*dos"mi*um\, n. [Iridium + osmium.] (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.