English

Definition of octavo noun from the Oxford Advanced Learner's Dictionary

 

octavo

 noun
noun
BrE BrE//ɒkˈteɪvəʊ//
 
; NAmE NAmE//ɑːkˈteɪvoʊ//
 
; BrE BrE//ɒkˈtɑːvəʊ//
 
; NAmE NAmE//ɑːkˈtɑːvoʊ//
 
(pl. octavos) (specialist)
 
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a size of a book page that is made by folding each sheet of paper into eight leaves (= 16 pages) Word Origin late 16th cent.: from Latin in octavo ‘in an eighth’, from octavus ‘eighth’.
See the Oxford Advanced American Dictionary entry: octavo