pipe·line 
/ˈpaɪpˌlaɪn/ noun
plural pipe·lines /ˈpaɪpˌlaɪn/ noun 1 [count] : a line of connected pipes that are used for carrying liquids and gases over a long distance
▪ a natural gas pipeline — sometimes used figuratively ▪ a weapons pipeline ▪ a news pipeline from the mayor's office 2 the pipeline : the system for developing and producing something
▪ the next wave of products to come down the pipeline [=to be produced] ▪ Newer treatments for the disease are in the pipeline. [=are being developed] ▪ He's a film producer with several projects in the pipeline. [=in the works]
▪ a natural gas pipeline — sometimes used figuratively ▪ a weapons pipeline ▪ a news pipeline from the mayor's office
▪ the next wave of products to come down the pipeline [=to be produced] ▪ Newer treatments for the disease are in the pipeline. [=are being developed] ▪ He's a film producer with several projects in the pipeline. [=in the works]
