Definify.com
Webster 1913 Edition
Imprimatur
‖
Imˊpri-ma′tur
,Noun.
 [L., let it be printed.] 
1. 
(Law) 
A license to print or publish a book, paper, etc.; also, in countries subjected to the censorship of the press, approval of that which is published. 
Webster 1828 Edition
Imprimatur
IMPRIMA'TUR
,Noun.
 A license to print a book, &c.
Definition 2025
imprimatur
imprimatur
See also: imprimátur
English
Noun
imprimatur (plural imprimaturs or imprimantur)
-  (printing) An official license to publish or print something, especially when censorship applies.
-  1664, John Wilson, The Cheats, publication info page:
- The Cheats · A Comedy · Written in the Year, M.DC.LXII. Imprimatur, Roger L'estrange. Nov. 5. 1663. By John Wilson
 
 
-  1664, John Wilson, The Cheats, publication info page:
-  (by extension) Any mark of official approval.
-  1988, New York Times, Gay fiction comes home, :
- Children, the final imprimatur to family life, are being borrowed, adopted, created by artificial insemination.
 
 
-  1988, New York Times, Gay fiction comes home, :
Translations
official license to publish
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any mark of official approval
French
Etymology
From Latin imprimatur (“let it be printed”)
Noun
imprimatur m (plural imprimaturs)
-  imprimatur
- Donner son imprimatur.