Bible Dictionaries
Trisection

Webster's Dictionary

(n.) The division of a thing into three parts, Specifically: (Geom.) the division of an angle into three equal parts.

Bibliography Information
Webster, Noah. Entry for 'Trisection'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/trisection.html. 1828.