Sootproof

"Sootproof" in a Sentence (2 examples)

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.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.