monosaccharide

Any of several carbohydrates, such as tetroses, pentoses, and hexoses, that cannot be broken down to simpler sugars by hydrolysis.

A carbohydrate the molecule of which is not divisible into simpler groups without loss of its essential characteristics. According to the number of carbon atoms, monosaccharides are divided into trioses, tetroses, pentoses, hexoses, etc. One of the best-known examples is the hexose dextrose (glucose).

A simple sugar; any of a number of sugars (including the trioses, tetroses, pentoses, hexoses, etc.), not decomposable into simpler sugars by hydrolysis. Specif., as used by some, a hexose. The monosaccharides are all open-chain compounds containing hydroxyl groups and either an aldehyde group or a ketone group.

A simple sugar such as glucose, fructose or deoxyribose that has a single ring.

a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates