Pronunciation

change

Plain form
streamline

Third-person singular
streamlines

Past tense
streamlined

Past participle
streamlined

Present participle
streamlining

  1. (transitive) When you streamline something, you make it into a shape that allows it to move through a fluid easily using little energy.
    Streamlining helps animals swim though water and fly through air.
    Cars that are streamlined use less energy and can go faster.