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Meaning of iron triad | Babel Free

Noun CEFR B2

Definitions

The triad of iron, cobalt, and nickel, three elements that share certain chemical and physical traits and are important in ferrous metallurgy.

Examples

“Holonym: iron group (broader sense)”

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

iron triangle iron vitriol iron-54 iron-56 iron-57 iron-58