See Also: argon(medicine)
argon(dictionary)
argon(encyclopedia)
argon(dictionary)
Argon laser(health)
potassium-argon dating(encyclopedia)

argon (iou)



argon noun. L19.
[Greek, neut. of argos idle, inactive, from A-10 + ergon work.]
A colourless odourless gaseous chemical element, atomic no. 18, which is one of the noble gases and is present in air to the extent of about one per cent by volume. (Symbol Ar.)