Engines were often delivered with improperly cleaned castings, broken piston rings, and machine cuttings left inside the engine.

Another cause is an improperly cleaned air conditioner.

Both men liked their tripes green, which was simply a euphemism for their being improperly cleaned of the original contents.

The way the pelt about the neck had bunched up, caked together like an improperly cleaned worker's paintbrush; the raw amber hollow in the eye.

Now it was like an improperly cleaned wound that reopened and must drain away the infection of self-hatred.

A. The joints between the tiles were probably improperly cleaned before the new grout was applied.

If the fish is improperly cleaned, however, its poison can kill.

The measures also do not take account of the possibility that the AIDS virus could be spread between patients on improperly cleaned instruments, even if the health worker involved is not infected.

And the blood synthesizing machine had been improperly cleaned.