Noun(1) a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
(1) The earth's crust is depleted in iridium and other platinum group elements, while meteorites are enriched in them.(2) The new electrochemical system is based on a magnesium anode, a seawater/catholyte electrolyte and an electrocatalyst of palladium and iridium catalyzed on carbon paper.(3) They found the rare element iridium in the thin clay layer that caps the rocks of the Cretaceous era.(4) Jewellery made of platinum, iridium and palladium gleamed majestically, now and then emitting flashes of brilliant light from the studded diamonds.(5) Previously, it was thought that any asteroid or comet collision would leave strong evidence of the element iridium , the signal found in the sedimentary layer from the time of the dinosaur extinction.
(1) iridium :: iridium
English to Afrikaans Dictionary: iridium
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