tierce


tierce (http://definr.com/tierce)

     n 1: the third canonical hour; about 9 a.m. [syn: terce]
     2: the cardinal number that is the sum of one and one and one
        [syn: three, 3, III, trio, threesome, leash, troika,
         triad, trine, trinity, ternary, ternion, triplet,
         tercet, terzetto, trey, deuce-ace]
     3: one of three equal parts of a divisible whole; "it contains
        approximately a third of the minimum daily requirement"
        [syn: one-third, third]