A province in the north-west of Asia Minor. On his first voyage
to Europe (Acts 16:7, 8) Paul passed through this province and
embarked at its chief port Troas.
Smith's Dictionary
(land of beech trees) (Acts 16:7,8) was the region about the frontier of the provinces of Asia and Bithynia. The term is evidently used in an ethnological, not a political, sense.