I. adjective see: journal Date: 14th century 1. recurring every day , having a daily cycle , 2. of, relating to, or occurring in the daytime , active chiefly in the daytime , opening during the day and closing at night , ~ly adverb II. noun Date: 1600 diary , daybook , journal 2a
DIURNAL
Meaning of DIURNAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012