noun Railroads.

a sleeping berth in a passenger compartment that can be collapsed to form a benchlike seat for daytime use.
a compartment containing such berths.

Origin of couchette

From French; see origin at couch, -ette Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for couchette



a bed in a railway carriage, esp one converted from seats

Word Origin for couchette

C20: from French, diminutive of couche bed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012