1) Stachyose 
A tetrasaccharide is a carbohydrate which gives upon hydrolysis four molecules of the same or different monosaccharides. For example, stachyose upon hydrolysis gives one molecule each of glucose and fructose and two molecules of galactose. The general formula of a tetrasaccharide is typically C24H42O21. ...
A sugar containing four molecules of a monosaccharide; e.g., stachyose. ... (05 Mar 2000) ... 
Type: Term Pronunciation: tet′ră-sak′ă-rīd Definitions: 1. A sugar containing four molecules of a monosaccharide; stachyose.
[n] - any of a variety of carbohydrates that yield four monosaccharide molecules on complete hydrolysis
noun any of a variety of carbohydrates that yield four monosaccharide molecules on complete hydrolysis