"to cut in two," 1640s, from Modern Latin bisectus, from Latin bi- "two" (see bi-) + secare "to cut" (from PIE root *sek- "to cut"). Related: Bisected; bisecting.
bisect a line
birthstone
bis-
Biscay
biscotti
biscuit
bisect
bisection
bisector
bisexual
bisexuality
bishop
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