A sirupy variety of sugar, rarely obtained crystallized, occurring widely in honey, ripe fruits, etc., and hence called also fruit sugar; also called fructose. Chemical formula: C6H12O6. It is called levulose, because it rotates the plane of polarization of light to the left, in contrast to dextrose, the other product of the hydrolysis of sucrose.
Also called fructose (fruit sugar), a monosaccharide commonly found in honey that is slow to granulate (such as Robinia or locust honey); chemical formula is like glucose, but has it’s carbonyl group in a different place.