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]