ternary (
http://definr.com/ternary)
adj : having three units or components or elements; "a ternary
operation"; "a treble row of red beads"; "overcrowding
made triple sessions necessary"; "triple time has three
beats per measure"; "triplex windows" [syn:
treble,
triple,
triplex]
n : the cardinal number that is the sum of one and one and one
[syn:
three,
3,
III,
trio,
threesome,
tierce,
leash,
troika,
triad,
trine,
trinity,
ternion,
triplet,
tercet,
terzetto,
trey,
deuce-ace]