1 per diem /pɚˈdiːjəm/ adverb Learner's definition of PER DIEM
formal
: for each day : per day每日地;按日计地
— per diem
adjective, always used before a noun 2 per diem /pɚˈdiːjəm/ noun
plural per diems
2 per diem
/pɚˈdiːjəm/
noun
plural per diems
Learner's definition of PER DIEM
[count] US
: an amount of money given to someone for daily expenses (such as food or fuel)每日津贴