/ ˈrekwɪzɪt; NAmE / adjective , noun
■ adjective
[ only before noun ] ( formal ) necessary for a particular purpose :
She lacks the requisite experience for the job.
■ noun
requisite (for / of sth) ( formal ) something that you need for a particular purpose :
toilet requisites (= soap, toothpaste , etc.)
A university degree has become a requisite for entry into most professions.
—compare prerequisite
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WORD ORIGIN
late Middle English : from Latin requisitus searched for, deemed necessary, past participle of requirere , from re- (expressing intensive force) + quaerere seek.