Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "defragging" in a sentence
"Generally defragging is not necessary on OS X and some people even frown upon it."
"Advanced options available in Disk Defrag include a built-in scheduler for unattended optimization, as well as a setting for real-time defragging, which is performed in the background during computer idle times."
"This whole ridiculousness known as The need for 'defragging' is one of the main reasons I moved over to Mac OS a few yeas ago."