noun. ['ˌɪˈrɪdiːəm'] a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium.
- metallic element
- ἶρις (Ancient Greek (to 1453))
Words that Rhyme with Iridium
Example sentences of the word iridium
1. Noun, singular or mass
Spark plugs made with iridium electrodes have a tolerance to heat above that of platinum types.
Many fakes have the words "iridium tip" and "made in Germany" stamped on them.