sump pump

1. 1.

   a suction pump for removing liquid from a sump

   Broadersuction pump

Questions about sump pump

What does sump pump mean?

sump pump means "a suction pump for removing liquid from a sump".

Is sump pump a common word?

sump pump is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.