fellow-servant rule

[ fel-oh sur-vuh nt ]
/ ˈfɛl oʊ ˈsɜr vənt /

noun

the common-law rule that the employer is not liable to an employee for injuries resulting from the negligence of a fellow employee.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019