Definition:
βίβλος, -ου, ἡ (variant form of βύβλος, the Egyptian papyrus, paper made from its fibrous coat), [in LXX for סֶפֶר, the form βύβ- being sometimes used;] a book, a roll, used much less frequently than βιβλίον, and with a "connotation of sacredness and veneration" (MM, Exp., x), Mat.1:1 Mrk.12:26, Luk.3:4 20:42 Act.1:20 7:42 19:19; β. τ. ζωῆς, Php.4:3, Rev.3:5 20:15. (AS)
Definition:
; book; properly, the inner bark of the papyrus plant, i.e. (by implication) a sheet or scroll of writing