Definition of iridium in English:

Share this entry

iridium

Pronunciation: /ɪˈrɪdɪəm/
/ʌɪˈrɪdɪəm/

noun

[mass noun]
The chemical element of atomic number 77, a hard, dense silvery-white metal. (Symbol: Ir)
Example sentences
  • Jewellery made of platinum, iridium and palladium gleamed majestically, now and then emitting flashes of brilliant light from the studded diamonds.
  • 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.
  • The earth's crust is depleted in iridium and other platinum group elements, while meteorites are enriched in them.

Origin

Early 19th century: modern Latin, from Latin iris, irid- 'rainbow' (so named because it forms compounds of various colours).

Words that rhyme with iridium

cryptosporidium, cymbidium, idiom, rubidium
Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.