Pronunciation

change

Plain form
decimate

Third-person singular
decimates

Past tense
decimated

Past participle
decimated

Present participle
decimating

  1. (transitive) If A decimates B, A kills or destroys a large part or number of B.
    The virus decimated the population of this country.
    The city was decimated by the storm.
  2. (old, no longer used) If A decimates B, A kills one-tenth of B.