What is "defragged"

Usage examples of "defragged".

But only to be reassembled after each calamity, defragged and degaussed, bathed in oil - a droid's bacta tank - and polished back to his auric splendor.

But only to be reassembled after each calamity, defragged and degaussed, bathed in oil—a droid’s bacta tank—and polished back to his auric splendor.