Relating to or containing cadmium or cadmia; of or pertaining to the element cadmium.
From cadmia + -ic (suffix meaning 'of or relating to'). Formed in the 19th century as chemistry developed more precise terminology for elements and their compounds.
Cadmic yellow was once a popular paint pigment—so toxic it's now banned in many countries, but artists risked it because the color was absolutely brilliant!
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