im ‧ pri ‧ ma ‧ tur /ˌɪmprəˈmeɪtə, ˌɪmprɪˈmeɪtə, -ˈmɑː- $ -ər/ BrE AmE noun [singular]
[ Date: 1600-1700 ; Language: Latin ; Origin: 'let it be printed' , from imprimere ; ⇨ ↑ impress ]
1 . formal approval of something, especially from an important person:
His actions have the imprimatur of the Secretary of State.
2 . technical official permission to print a book, given by the Roman Catholic Church