Definitions for uninstallˌʌn ɪnˈstɔl
Random House Webster's College Dictionary
to remove (software) from a computer system, esp. by using a special program (an un`in•stall′er or uninstall′ util`ity ) that can find and remove an executable program and the accompanying files that allow it to run.
Origin of uninstall:
To completely remove hardware or software from a computer system.