os|mi|um

os|mi|um «OZ mee uhm, OS-», noun.

a hard, bluish-white chemical element which occurs with platinum and iridium. Osmium is a metal and the heaviest known element. It is used for electric-light filaments and phonograph needles.

╂[New Latin osmium < Greek osm smell, odor (from the odor of one of the osmium oxides)]