diurnal
adjective biology specialized uk/ˌdaɪˈɜː.nəl/ us/ˌdaɪˈɝː.nəl/
在一天内发生的;白天发生的;昼行性的
happening over a period of a day, or being active or happening during the day rather than at night
Compare: nocturnal
江苏热线英汉汉英双解词典包含207361条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。