T1R1I1S1E1C3T1
9 points
TRISECT is validvalid
to divide into three equal parts [v TRISECTED, TRISECTING, TRISECTS]
to divide into three equal parts [v -ED, -ING, -S]
to divide into three equal parts [v TRISECTED, TRISECTING, TRISECTS]
to divide into three equal parts [v -ED, -ING, -S]