sootproof
English
editEtymology
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editsootproof (not comparable)
- Resistant to soot.
- 1921, Chilton's Motor Age: Volume 39, Part 2[1], Chilton Company, page 128:
- A spark plug which will stay sootproof and give long service in any of the Ford cylinders, must be a specially built plug.
- 1914, The Autocar: Volume 33[2], London: Iliffe, Sons & Sturmey Limited, page 648:
- […] only a sootproof plug is of any use to a Mathis owner.