| Katie's hearing began to deteriorate in 1997 and she had to rely on hearing aids and lip-reading. |
| The watertight seals over structural joints tend to deteriorate over time as the caulking becomes less sticky and dislodges. |
| Water accumulation can cause straw bale walls to mildew and eventually decompose, and earthen walls to deteriorate and collapse. |
| Sports physiologists know that athletic ability does not deteriorate nearly as rapidly as was once thought. |
| I am much saddened that it has been allowed to deteriorate to such an extent that it is now surely beyond redemption. |
| When these buildings begin to deteriorate, asbestos fibres may be released. |
