OXFORD 9000
📚 noun • entry_id 5108

iridium

/ɪˈɹɪd.i.əm/
Meanings (ES + gloss)
iridio
A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group.
Iridium is extremely rare on the surface of the earth but much more common in meteorites.
Word forms