Can be easily removed by rubbing

• Can be wiped off in time with artist's brush
• Removable with a rubber
• Not permanent, as ink
• Like some pens
• Like a whiteboard
• Impermanent
• Some operas, a blessing that could disappear?

Wiktionary Word definitions in Wiktionary
a. Capable of being erased

WordNet Word definitions in WordNet
adj. capable of being effaced; "the fire's worst scars were effaceable by a comprehensive program of reforestation"; "a signal too loud to be erasable in a single pass through the erase head" [syn: effaceable ]

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Erasable \E*ras"a*ble\, a. Capable of being erased.