Definition of trickle noun from the Oxford Advanced Learner's Dictionary

     

    trickle

     noun
    noun
    BrE BrE//ˈtrɪkl//
     
    ; NAmE NAmE//ˈtrɪkl//
     
     
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  1. 1a small amount of liquid, flowing slowly There was a trickle of blood at the corner of his mouth.
  2. 2[usually singular] trickle (of something) a small amount or number of something, coming or going slowly a steady trickle of visitors
  3. Word Origin Middle English (as a verb): imitative.Extra examples The flood of offers of help had dwindled to a mere trickle. a constant trickle of water As a result of the civil war, the steady trickle of immigration became a flood of refugees. It can be very disconcerting for a teacher to have a constant trickle of latecomers into the class.
See the Oxford Advanced American Dictionary entry: trickle