Synonyms of pipeline
IDIOM:▷ in the pipeline
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conduitA conduit is a small tunnel, pipe, or channel through which water or electrical wires go.
• He saw that the conduit was choked with rubbish.
ductA duct is a pipe, tube, or channel which carries a liquid or gas.
• a big air duct in the ceiling
passageA passage is a long narrow hole or tube in your body, which air or liquid can pass along.
• cells that line the air passages
Thesaurus for pipeline from the Collins English Thesaurus