Wiktionary
eat away
vb. Gradually to erode or corrode.
WordNet
Usage examples of "eat away".
If exhausted into an atmosphere, atoms of antimatter would flare and eat away the vessel itself.
Be warned that it is caustic and will eagerly eat away at more than just warts.
The combination would sterilize and even partly eat away his spacesuit, after which the chlorine and steam should be bled out to space, and air from the ship let into the lock.
Resources spent on repair, whether of cars or of bodies, eat away at the resources available for buying new cars or making babies.
It roared in agony as the substance began to eat away at its flesh like acid.