Corroding

We found a short valley between rugged tors which led to an open, grassy space flecked over with the white cotton grass. In the middle of it rose two great stones, worn and sharpened at the upper end, until they looked like the huge, corroding fangs of some monstrous beast.

Is your boss corroding your self-esteem?

My companions ate merely to satisfy the corrodings of hunger. I fasted till after three the succeeding morning.