SM - a master's degree in science Master of Science, MSc, MS master's degree - an academic degree higher than a bachelor's degree but lower than a doctor's degree
DEFINITION of 'Per Diem Payments'. Generally, a specified amount that employers will pay to employees as reimbursement for various expenses. Per diem payments usually assume a set dollar limit, such as $30 per day for meals or $100 per day for lodging. These payments are usually made for employee travel expenses.er diem payments are usually counted as nontaxable income to employees, up to a certain amount, and any excess reimbursement is included in box 12 of the W-2 form. The IRS allows a preset amount to be excluded from taxation for each type of per diem expense. RELATED TERMS.
âPer Diemâ is a Latin term that means âby the day.â Per diem refers not to the specialty care that nurses give, but to how the nurse is hired: literally on a day to day basis. In other words, a per diem nurse is not a regularly employed nurse, working for only one division in a hospital, but someone who works on a variety of units and sometimes in a variety of hospitals and other facilities.