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.
 More job losses are in the pipeline.  [TahlilGaran] Dictionary of Contemporary English ▲