pipelinePronunciation: /ˈpʌɪplʌɪn/Translate pipeline | into French | into German | into Italian | into Spanish Definition of pipeline noun 1a long pipe, typically underground, for conveying oil, gas, etc. over long distances. a channel or system supplying goods or information:the biggest heroin pipeline in history 2 Computing a linear sequence of specialized modules used for pipelining. 3(in surfing) the hollow formed by the breaking of a very large wave. verb 1 [with object and adverbial of direction] convey (a substance) by a pipeline: oil and gas were pipelined to refineries in Toronto 2 [with object] (often as adjective pipelined) Computing design or execute (a computer or instruction) using the technique of pipelining. Phrases in the pipeline in the process of being planned or developed: the company has three new models in the pipelinepipeline in other Oxford dictionaries Definition of pipeline in the US English dictionary