What does sootproof mean?
Sootproof means Resistant to soot..
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Pronunciation varies by accent · adjective
Resistant to soot..
A spark plug which will stay sootproof and give long service in any of the Ford cylinders, must be a specially built plug.
[…] only a sootproof plug is of any use to a Mathis owner.
Use sootproof when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Sootproof means Resistant to soot..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
A spark plug which will stay sootproof and give long service in any of the Ford cylinders, must be a specially built plug.
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