Definition of uninstallation in US English:

uninstallation

noun

  • See uninstall

    • ‘Some users have reported that older versions, upon uninstallation, left them with disabled CD-ROM drives.’
    • ‘Giving the user more choice, making installation flexible and universal, allowing for uninstallation - all of these make worms harder to propagate.’
    • ‘However, I don't recommend uninstallation of the pack, if you don't have any problem.’
    • ‘It also says ‘the software is uninstalled when the CD is removed’, which we just don't believe - and again, software uninstallation should be a transparent process, not something happening in the background.’
    • ‘It provides software that facilitates the installation and upgrade of software, as well as its uninstallation.’

Pronunciation

uninstallation

/ˌən-instəˈlāSHən/