1) Ketohexose 1) Monosaccharide 2) Monosaccharose 3) Simple sugar 
A ketose is a monosaccharide containing one ketone group per molecule. With three carbon atoms, dihydroxyacetone is the simplest of all ketoses and is the only one having no optical activity. Ketoses can isomerize into an aldose when the carbonyl group is located at the end of the molecule. Such ketoses are reducing sugars. ==List of ketoses== All...
(from the article `chemical compound`) Most carbohydrates are either polyhydroxy aldehydes (called aldoses) or polyhydroxy ketones (called ketoses). Carbohydrates that cannot be easily ...
<biochemistry> A simple sugar that has a ketoneas its carbonyl group. ... (09 Oct 1997) ... 
(ke´tōs) one of the two main types of monosaccharide sugars; those that contain a ketone group, such as fructose.
Type: Term Pronunciation: kē′tōs Definitions: 1. A carbohydrate containing the characteristic carbonyl group of the ketones, a polyhydroxyketone (fructose, ribulose, sedoheptulose); the majority of the naturally occurring ketoses have the carbonyl group on the second carbon.
[n] - any monosaccharide sugar that contains a ketone group or its hemiacetal
a monosaccharide that contains a ketone group.