A disaccharide consisting of two glucose units, obtained by the partial hydrolysis of cellulose. Formerly also called cellose.
Formula: C₁₂H₂₂O₁₁. Cellobiose differs from maltose in having a β(1→4) glycosidic linkage between the glucose units.
Early 20th century; earliest use found in Journal of the Chemical Society. From German Cellobiose from Cello- (in Cellose) + -biose, combining form indicating a disaccharide.