1. Any of various large passenger vehicles, especially a luxurious automobile usually driven by a chauffeur and sometimes having a partition separating the passenger compartment from the driver's seat.
2. A van or small bus used to carry passengers on a regular route, as between an airport and a downtown area.

[French, perhaps after LIMOUSIN.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.