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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
1817, from Ancient Greek Καδμεία (Kadmeía, “calamine”), a cadmium-bearing mixture of minerals, which was named after the king Κάδμος (Kádmos, “Cadmus”).
Cd, atomic number 48
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Classic usage
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