Per diem Meaning, Definition & Usage

  1. noun a daily allowance for living expenses (especially while traveling in connection with your job)
  2. adverb one every day
    by the day.
    • we'll save 100 man-hours per diem

WordNet


Definitions
  1. by the day. [For other phrases from the Latin, see Quotations, Phrases, etc., from Foreign Languages, in the Supplement.]

Webster 1913