Pronunciation: (ok-tā'vō, -tä'-), Strict Standards: Non-static method FenSites::linkTo() should not be called statically in /site/html/dictionary/octavo.html on line 71 [key]
—n., pl. -vos for 2,
1. a book size of about 6 × 9 in. (16 × 23 cm), determined by printing on sheets folded to form 8 leaves or 16 pages. Symbol: 8vo, 8°
2. a book of this size.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.