An ancient country of northwest Asia Minor in present-day Turkey. Originally inhabited by Thracians, it was absorbed into the Roman Empire by the end of the first century B.C.
Bithynian Bi·thyn'i·an adj. & n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.