bound form; codex form
Refers to the physical format of a publication being a bound volume, as opposed to a scroll, single sheet, or digital file. Used in library science, publishing, and archival contexts.
This magazine is available in both bound form and electronic edition.
The library holds many materials in bound form.
Compound of 冊子 (sasshi, 'booklet, bound volume') + 体 (tai, 'form, format'). The exact historical derivation is uncertain, but the term is a modern technical coinage for distinguishing physical bound formats.