trisect

Cut in thirds

To trisect is to divide something into three equal parts.

The term appears most often in geometry, where trisecting an angle—dividing it into three equal angles using only compass and straightedge—was proven impossible in 1837, though mathematicians had attempted it for over two thousand years.

Draw lines to trisect the circle.

division

partition

Barrier separating spaces

divide · separate · slice · cut · cleave · quarter · halve · fractionate · apportion · demarcate

geometry

angle

Geometric measure of rotation

protractor · Euclid · triangle · arc · vertex · plane · line · perpendicular · geometer · ruler

thirds

tripartite

Consisting of three parts

triple · threefold · trilateral · tripart · tercet · triptych · treble · triplet · trilogy · triumvirate

precision

exactness

Correctness in every detail

meticulousness · rigor · specificity · geometric · analytical · calculated · methodical · systematic · careful · exacting

Opposites
number of divisions

trisectbisect

Divide into two equal portions

halve · quarter · dichotomize · bifurcate · bipartition

division vs. combination

trisectunite

Bring together as one

combine · merge · join · fuse · unify

Family

trisection, trisected, trisects, trisecting

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