slipcase

[ slip-keys ]

noun

1. a box for a book or set of books, open on one side so that the spine is visible.

slipcase

/ ˈslɪpˌkeɪs /

noun

1. a protective case for a book or set of books that is open at one end so that only the spines of the books are visible

Word History and Origins

Origin of slipcase¹

First recorded in 1920–25; slip ¹ + case ²