1. The tenderest part of a loin of beef, pork, or similar cut of meat.
2. A city district notorious for vice and graft.
[Sense 2, after the Tenderloin, an area of New York City (from the easy income it once afforded corrupt policemen).]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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