Main Entry: gly·co·gen

Pronunciation: \ˈglī-kə-jən\

Function: noun

: a white amorphous tasteless polysaccharide (C₆H₁₀O₅)_x that constitutes the principal form in which glucose is stored in animal tissues, occurs especially in the liver and in muscle and also in fungi and yeasts, and resembles starch in molecular structure and in the formation of only glucose on complete hydrolysis—called also animal starch