erosion
ero|sion /ɪr'oʊʒən/
1 [N-UNCOUNT]
Erosion is the gradual destruction and removal of rock or soil in a particular area by rivers, the sea, or the weather.
As their roots are strong and penetrating, they prevent erosion.
...erosion of the river valleys.
...soil erosion.
2 [N-UNCOUNT] usu N of n
The erosion of a person's authority, rights, or confidence is the gradual destruction or removal of them.
...the erosion of confidence in world financial markets.
...an erosion of presidential power.
3 [N-UNCOUNT] usu N of n
The erosion of support, values, or money is a gradual decrease in its level or standard.
...the erosion of moral standards.
...a dramatic erosion of support for the program.
1 [N-UNCOUNT]
Erosion is the gradual destruction and removal of rock or soil in a particular area by rivers, the sea, or the weather.
As their roots are strong and penetrating, they prevent erosion.
...erosion of the river valleys.
...soil erosion.
2 [N-UNCOUNT] usu N of n
The erosion of a person's authority, rights, or confidence is the gradual destruction or removal of them.
...the erosion of confidence in world financial markets.
...an erosion of presidential power.
3 [N-UNCOUNT] usu N of n
The erosion of support, values, or money is a gradual decrease in its level or standard.
...the erosion of moral standards.
...a dramatic erosion of support for the program.