refractory
/ɹɪˈfɹæk.təɹ.i/ noun C2- A material or piece of material, such as a brick, that has a very high melting point.
- A plant or factory that produces such material.
Plural refractories
From the library
MARILLA said nothing to Matthew about the affair that evening; but when Anne proved still refractory the next morning an explanation had to be made to account for her absence from the breakfast table.
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