Webster’s Revised Unabridged Dictionary · 1913
Bisect
Bi·sect′ (bī·sĕkt′), v. t. [imp. & p. p. Bisected; p. pr. & vb. n. Bisecting.] [L. bis twice + secare, sectum, to cut.] 1. To cut or divide into two parts.
2. (Geom.) To divide into two equal parts.