We found one dictionary that defines the word subtraction mark:

General (1 matching dictionary)

1. subtraction mark: Merriam-Webster

▸ Words similar to subtraction mark ▸ Usage examples for subtraction mark ▸ Idioms related to subtraction mark ▸ Wikipedia articles (New!) ▸ Words that often appear near subtraction mark ▸ Rhymes of subtraction mark ▸ Invented words related to subtraction mark