chapterdigit
nounUK /ˈtʃæptə ˈdɪdʒɪt/
US /ˈtʃæptər ˈdɪdʒɪt/
A chapterdigit is a number that shows which chapter of a book you are reading.
The chapterdigit on the page told her she was in chapter 7.
OTHER MEANINGS
2. A single digit used in a numbering system for chapters.
Each chapterdigit was printed in large type at the top of the page.
3. A code number that labels a chapter in a digital file.
The app used a chapterdigit to jump straight to the right part.
4. A numeral that counts chapters in order.
The chapterdigit went up by one each time a new chapter began.