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tri-

combining form

Definition of tri-

  1. 1 :  three :  having three elements or parts <trigraph>

  2. 2 :  into three <trisect>

  3. 3a :  thrice <triweekly>b :  every third <trimonthly>



Origin of tri-

Latin (from tri-, tres) & Greek, from tri-, treis — more at three


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