Definition of "single-track" [single-track]

• Having just one track. (adjective)
• Lacking mental range or flexibility; one-track: a single-track mind. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This is the land of single-track roads and passing places; of herds of deer and heather-coated mountains and cliffs that plunge into the icy sea."
• "Delays continue as trains single-track through the area."
• "The South Korean official Monday said that North Korea took advantage of the single-track approach."