Boyd’s Bible Dictionary:
(barren). An undefined section of Asia Minor, out of which several Roman provinces were formed (Acts 2:10; 16:6; 18:23).
Concise Bible Dictionary:
District in the center of Asia Minor, but its boundaries are not definitely known. It was visited by Paul (Acts 2:10; Acts 16:6; Acts 18:23).
Strong’s Dictionary of Greek Words:
Meaning:
probably of foreign origin; Phrygia, a region of Asia Minor
Jackson’s Dictionary of Scripture Proper Names:
parched (used for "female roaster")
Potts’ Bible Proper Names:
Torrid; barren; dry:― a region of Asia Minor, Acts 16:6. {Torridus; aridus}