eraser

中文： 黑板擦、板擦、橡皮、橡皮擦子

1. One who erases.
2. An object used to erase or remove something written or drawn by a pen or a pencil. (US) · I have worn out the eraser on this pencil.
3. An object used to erase something written either by chalk on a chalkboard, by a marker on a whiteboard, or by some other erasable implement; a chalkboard eraser, whiteboard eraser, etc. (US)
4. An overwriter program used to prevent data recovery.

复数 erasers