[ ˌɒktəʊ'dɛsɪməʊ ]
■ noun ( plural ~s ) a size of book page resulting from folding each printed sheet into eighteen leaves (thirty-six pages).
Origin
C19: from L. in ~ 'in an eighteenth', from octodecimus 'eighteenth'.
[ ˌɒktəʊ'dɛsɪməʊ ]
■ noun ( plural ~s ) a size of book page resulting from folding each printed sheet into eighteen leaves (thirty-six pages).
Origin
C19: from L. in ~ 'in an eighteenth', from octodecimus 'eighteenth'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004