TT
       n 1: (astronomy) a measure of time defined by Earth's orbital
            motion; terrestrial time is mean solar time corrected
            for the irregularities of the Earth's motions [syn: terrestrial
            time, terrestrial dynamical time, TDT, ephemeris
            time]
       2: a republic in the western central Pacific Ocean in
          association with the United States [syn: Palau, Republic
          of Palau]
       3: a country scattered over Micronesia with a constitutional
          government in free association with the United States;
          achieved independence in 1986 [syn: Micronesia, Federated
          States of Micronesia]