multiemployer

adj

1. (not-comparable)Of or pertaining to more than one employer.

noun

1. One of a group of multiple employers who work cooperatively on one or more personnel issues.

   “The reports are derived from employment and payroll information reported on Treasury Form 941, Schedule A, supplemented by a special survey of selected multiemployers.”

   “To the extent that health insurance locks workers in to a group of multiemployers providing health insurance, this form of job lock permits those employers and their corresponding union to consider investing in industry-specific human capital.”