Word forms: plural, 3rd person singular presenttense steamrollers, present participle steamrollering, past tense, past participle steamrollered1. countable nounA steamroller is a large, heavy vehicle with wide, solid metal wheels, which is used to make the surface of a road flat. In the past steamrollers were powered by steam.
2. verbIf you steamroller someone who disagrees with you or opposes you, you defeat them or you force them to do what you want by using your power or by putting a lot of pressure on them.
They could simply steamroller all opposition. [VERB noun]
She tried to steamroller him into a job he did not want. [VERB noun into noun]