sextodecimo

sextodecimo

A bookbinder trims the pages of a sextodecimo.

Definition

Noun (plural: sextodecimos or 16mo) A book size in which each leaf is one-sixteenth of a full sheet of paper, typically measuring about 4–5 inches (10–13 cm) in height. The term refers specifically to the format of a book where a single sheet of paper is folded four times to produce 16 leaves (32 pages).

Usage Examples
Advanced Usage
  • "to be in sextodecimo": to be published in the 16mo format.

    • The early almanacs were commonly issued in sextodecimo. (They were printed in a small, compact size.)
  • "sextodecimo binding": the specific style of binding used for books of this size.

    • The sextodecimo binding was often done in leather with gilt edges. (The binding was tailored to the small format.)
Variants and Related Words
  • Sixteenmo (noun): an alternative name for sextodecimo, derived from "sixteen-mo" (16mo).
    • The book was printed as a sixteenmo, identical in size to a sextodecimo.
  • Duodecimo (noun): a book size one-twelfth of a sheet (12mo), slightly larger than sextodecimo.
    • Duodecimo volumes are common in 18th-century literature.
  • Octavo (noun): a book size one-eighth of a sheet (8vo), larger than sextodecimo.
Synonyms
  • 16mo (abbreviation): the standard bibliographic notation for sextodecimo.
  • Small format: a general term for books of diminutive size, often used interchangeably with sextodecimo in casual contexts.
Related Idioms
  • "A sextodecimo gem": a small but valuable or beautifully made book.
    • The rare poetry collection was a sextodecimo gem, prized by bibliophiles. (A tiny, exquisite book.)
Usage Instructions
  • Use sextodecimo primarily in bibliographic, historical, or book-collecting contexts. It is a technical term and is rarely used in everyday conversation.
  • When referring to the format in writing, the abbreviation 16mo is common, especially in library catalogs and publishing notes.