Definition of randomize in US English:

randomize

verb

[with object]usually as adjective randomized
technical
  • Make unpredictable, unsystematic, or random in order or arrangement; employ random selection or sampling in (an experiment or procedure).

    • ‘The order of the questions was randomized but was the same for all participants.’
    • ‘Exercise order was randomized so an equal number of subjects performed either exercise first.’
    • ‘The order in which the trials were presented was randomized separately for each participant.’
    • ‘Both sets had identical problems but presentation order was randomized for each set for each participant.’
    • ‘The order of the response options was randomized across stories and subjects.’

Pronunciation

randomize

/ˈrandəˌmīz//ˈrændəˌmaɪz/