See Also: iridium(medicine)
iridium(dictionary)
iridium(encyclopedia)
iridium(dictionary)
iridium radioisotopes(medicine)
QUADRANT IRIDIUM Limited(finance)

iridium (iou)



iridium noun. E19.
[from Latin irid-, iris rainbow (on account of its forming compounds of various colours) + -IUM.]
A white metallic chemical element, atomic no. 77, belonging to the platinum group and used in certain hard alloys. (Symbol Irish)