pipe‧line /ˈpaɪp-laɪn/
noun [countable]1. a line of connecting pipes, often under the ground, used for sending gas, oil etc over long distances
2. be in the pipeline if a plan, idea, or event is in the pipeline, it is being prepared and it will happen or be completed soon:
More job losses are in the pipeline. [TahlilGaran] Dictionary of Contemporary English ▲