![yellow-dog contract yellow-dog contract](https://www.tekportal.net/wp-content/uploads/2018/11/yellow-dog-contract-1.jpg)
noun
- a contract between a worker and an employer in which, as a condition of employment, the worker agrees not to remain in or join a union.
noun
- US a contract with an employer, now illegal, in which an employee agreed not to join a trade union during his employment