- a close-fitting, semiformal jacket, with a short back, worn in the tropics in place of a tuxedo.
Origin of shell jacket
First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for shell jacket
His shell-jacket was as much too little for him as he was too big for the premises.The Personal History of David Copperfield
- an army officer's waist-length mess jacket