trisect

American  

[trahy-sekt, trahy-sekt] / traɪˈsɛkt, ˈtraɪ sɛkt /

verb (used with object)

1. to divide into three parts, especially into three equal parts.

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trisect British  

/ traɪˈsɛkʃən, traɪˈsɛkt /

verb

1. (tr) to divide into three parts, esp three equal parts

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Other Word Forms

• trisection noun
• trisector noun

Etymology

Origin of trisect

1685–95; tri- + -sect < Latin sectus, past participle of secāre to cut, sever; see section

Example Sentences

Could you use those tools to trisect an angle?

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

Hippias of Elis invented a certain curve called the quadratrix, by means of which he could square the circle and trisect any angle.

From The Teaching of Geometry by Smith, David Eugene

The mathematician of to-day admits that he can neither square the circle, duplicate the cube or trisect the angle.

From Side-Lights on Astronomy and Kindred Fields of Popular Science by Newcomb, Simon

"Then the three coils should trisect dead center, if the models were correct."

From The Crystal Crypt by Dick, Philip K.

But while we cannot trisect the angle, we may easily approximate trisection.

From The Teaching of Geometry by Smith, David Eugene