Similar words: journal, nocturnal, journalism, journalist, journalese, general journal, yellow journalism, cash receipts journal. Meaning: [daɪ'ɜːnl] 
adj. 1. belonging to or active during the day 2. having a daily cycle or occurring every day.
adj. 1. belonging to or active during the day 2. having a daily cycle or occurring every day. 
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91. The curve of diurnal variation of leaf photosynthesis showed two single peak.
92. Diurnal maximal value of stomatal conductance and transpiration was seen at 15:00 h.
More similar words: journal, nocturnal, journalism, journalist, journalese, general journal, yellow journalism, cash receipts journal, furnace, surname, turn away, tournament, turn around, turnaround, supernal, vernal, carnal, eternal, turn a blind eye, maternal, infernal, eternally, external, paternal, internal, turn a blind eye to, turnaround time, turn a deaf ear to, externally, fraternal.