i 1 r 1 i 1 d 2 i 1 u 1 m 3
7 letters · 10 points in Scrabble
Meaning
noun a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
originFrom international scientific vocabulary, from New Latin iridium, from Classical Latin iris + -ium, from Ancient Greek ἶρις (îris, “rainbow”), because of the bright colour of many of the element's salts.
Etymology from Wiktionary, CC BY-SA 3.0