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[nok-turn] /ˈnɒk tɜrn/
noun, Roman Catholic Church
the office of matins, consisting of nine psalms and either three or nine lessons.
before 1150; Middle English nocturne < Medieval Latin nocturna, noun use of feminine of Latin nocturnus by night; replacing Old English noctern < Medieval Latin, as above Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for nocturn
  • They are primarily nocturn al and use dens year-round, unlike other members of the canid family.
British Dictionary definitions for nocturn


(RC Church) any of the main sections of the office of matins
Word Origin
C13: from Medieval Latin nocturna, from Latin nocturnus nocturnal, from nox night
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for nocturn

a division of the office of matins, early 13c., from Old French nocturne "evening service; curfew," from Medieval Latin nocturna, "group of Psalms used in the nocturns," from Latin nocturnus (see nocturnal).

Online Etymology Dictionary, © 2010 Douglas Harper
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