spaller means A tool used to remove concrete. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From spall + -er.
noun
- A tool used to remove concrete.“Concrete floors and walls can be mechanically decontaminated by removing the contaminated surface layer (1 to 2 inches) using surface grinders, spallers, or pneumatic drills.”
- A person who breaks down stone into smaller pieces.“In 1919, the weekly margin above the living wage for the "all others" item was 6s., though the spallers then received 9s. a week margin and the millhands only 3s.”