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Webster 1913 Edition
Apyrous
Ap′y-rous
,Adj.
[Gr. [GREEK];
ἀ
priv. + [GREEK] fire.] Incombustible; capable of sustaining a strong heat without alteration of form or properties.
Webster 1828 Edition
Apyrous
AP'YROUS
,Adj.
Incombustible, or that sustains a strong heat without alteration of form or properties.
Apyrous bodies differ from those simply refractory. Refractory bodies cannot be fused by heat, but may be altered.