blackboard eraser

1. 1.

   an eraser that removes chalk marks from blackboard

   Broadereraser

Questions about blackboard eraser

What does blackboard eraser mean?

blackboard eraser means "an eraser that removes chalk marks from blackboard".

Is blackboard eraser a common word?

blackboard eraser is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.