Another is that without practice of new skills, learning may degrade quickly.

For now, it appears that very little gets into the air, and what does is usually quickly degraded by sunlight, a variety of scientists say.

When last Lighthouse keeper left in 1929, it quickly degraded.

Due to the lack of maintenance, the mill quickly degraded and became a ruin.

At the time, only vegetable oil was available, which degraded quickly compared to modern lubricants.

In the dry heat of the desert, horse droppings degraded quickly.

The problem with it is that because of the frequent light changes the fluorescent lamps can degrade quickly.

Inflammatory mediators have short half lives and are quickly degraded in the tissue.

In practice, however, the signals degrade quickly and need to be boosted by amplifiers every 2,000 feet.

These big molecules are delicate, they degrade quickly, and many bacteria's defenses can handle them.