Definition of trisect in English:

trisect

Syllabification: tri·sect
Pronunciation: /trīˈsekt
 
/

verb

[with object]
  • Divide (something) into three parts, typically three equal parts.
    More example sentences
    • Nicomedes trisected any rectilinear angle by means of the conchoidal curves, of which he had handed down the origin, order, and properties, being himself the discoverer of their special characteristic.
    • Today, even as traffic signals multiply and thick yellow lines bisect and trisect the roads, motorists, scooterists and non-conformists all line up together at painfully long red lights and plan strategy.
    • The right of the two diagrams shows how this hyperbola can be used to trisect the angle AOB.

Derivatives

trisection

Pronunciation: /-ˈsekSHən/
noun
More example sentences
  • He also discussed parabolas, angle trisection and magic squares.
  • In extending from the Pythagorean numbers to the totally real Vietens, it is important to understand the constructions involving trisections.
  • Three geometric construction problems from antiquity puzzled mathematicians for centuries: the trisection of an angle, squaring the circle, and duplicating the cube.

trisector

noun
More example sentences
  • Their centers thus lie on the trisectors of the angles adjacent to that line.
  • If the angles of any triangle be trisected, the triangle, formed by the meets of pairs of trisectors, each pair being adjacent to the same side, is equilateral.
  • We no longer look kindly on angle trisectors and circle squarers.

Origin

late 17th century: from tri- 'three' + Latin sect- 'divided, cut' (from the verb secare).

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