erasable

adj

1. (not-comparable)Capable of being erased

   “The Virginiola was recovered; the abstracted sheet was cunningly replaced, probably certain erasable marks that had been put in for fuller disguise were removed, and Mr Powis received back his property with formal regrets.”

   “Avoid the frustration of time-consuming do-overs on school projects. Try Crayola Erasable Markers, Crayons & colored pencils.”

noun

1. Any recording medium whose contents can be erased.

   “With the addition of the erasables, the company now offers what it describes as "a complete family" of optical recording products, including Videodisk, CD-ROM, CD-audio, and write-once units.”