Word: firestone
Part of speech: Noun
Syllables: fire
stone
Definition: A stone which will bear the heat of a furnace without injury; especially applied to the sandstone at the top of the upper greensand in the south of England, used for lining kilns and furnaces.
Morphemes:
Affix: fire
Language: en
PoS: Verb
Meaning: To heat as with fire, but without setting on fire, as ceramic, metal objects, etc.
Affix: stone
Language: en
PoS: Verb
Meaning: To wall with stones.