This "gradual degradation" is more noticeable on some discs than others.

It is measured in rads and causes slow gradual degradation of the device's performance.

Until recently the canvases were only reseeded at the end of each season and this led to a gradual degradation of the surface.

In 1945-1990 the street suffered from the gradual degradation.

This conflict is partially responsible for the gradual degradation of life on the ship/planetoid.

Another theory is that gradual environmental degradation caused population and economic decline.

In painful detail, he shows the daily deprivations and the gradual degradation.

"We are witnessing another step in the gradual degradation and deconstruction of American society."

The gradual degradation of the ball through the innings is an important aspect of the game.

A common result is the gradual degradation of the historic character of the neighborhood.