(geometry) The division of an angle into three equal parts.

plural of trisection

(transitive) to cut into three pieces / (transitive, mathematics) to divide a quantity, angle etc into three equal parts

Third-person singular simple present indicative form of trisect

present participle of trisect

simple past tense and past participle of trisect

(geometry) Either of two points which trisect a given line segment.

plural of trisection point

(surgery) The resection of three segments (typically, of the liver)

plural of trisectionectomy