NOUN (2)

1. an inhabitant of ancient Thrace;

2. a Thraco-Phrygian language spoken by the ancient people of Thrace but extinct by the early Middle Ages;


ADJECTIVE (1)

1. of or relating to Thrace or its people or culture;

The Collaborative International Dictionary of English v.0.48:

Thracian \Thra"cian\, a.
   Of or pertaining to Thrace, or its people. -- n. A native or
   inhabitant of Thrace.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Thracian
    adj 1: of or relating to Thrace or its people or culture
    n 1: an inhabitant of ancient Thrace
    2: a Thraco-Phrygian language spoken by the ancient people of
       Thrace but extinct by the early Middle Ages