Which the Definition/Meaning of underfiring in categoryENGLISH - NOUN
Information about the subject
English - Noun
* Heating from below. (Also used attributively.)
* Intentional operation of a boiler, furnace, oven, _etc._, at a low level.
* The state of not burning fuel at the desired level, and thus not providing heat efficiently.
* (ceramics) The state of being insufficiently fired or underfired.