iridosmine Meaning, Definition & Usage

  1. noun 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.
    osmiridium.

WordNet

Ir`i*dos"mine, Ir`i*dos"mi*um noun (Also<
  • Iridosmine
  • Iridosmium
)
Etymology
Iridium + osmium.
Definitions
  1. (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.

Webster 1913