WordReference Random House Unabridged Dictionary of American English © 2020
ver•mi•nate  (vûrmə nāt′),USA pronunciation v.i.,  -nat•ed, -nat•ing. 
  1. Pathologyto become infested with vermin, esp. parasitic vermin.
  2. [Archaic.]to breed or infest with vermin.
ver′mi•nation, n. 
  • Latin verminātus, past participle of vermināre to be infested with maggots, to have racking pains, equivalent. to vermin(a) racking pain + -ātus -ate1; dual sense of vermināre by association with vermis worm, maggot, vermin- being taken, perh. erroneously, as an extended stem of this word
  • 1685–95

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