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verb [transitive] stem pronunciation in American English /stem/ 
Word Forms
present tense
present participlestemming
past tensestemmed
past participlestemmed
  1. to stop something from spreading or increasing, especially something bad

    These policies have helped to stem population loss.

    stem the flow/tide/flood (of):

    Police are attempting to stem the rising tide of rural crime.

    1. a.
      formal to stop liquid from flowing

      Joan breathed in deeply, trying to stem her tears.

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