noun
Biochemistry term for the polysaccharide that serves as a form of energy storage in animals and fungi. The more common term is グリコーゲン.
See also: グリコーゲン
糖原質は肝臓と筋肉に蓄えられる。
Glycogen is stored in the liver and muscles.
グリコーゲン is the more common katakana loanword for glycogen. 糖原質 is a less frequent kanji-based term used mainly in technical or academic contexts.
Compound of 糖 (sugar) and 原質 (original substance), likely a calque or translation of the concept of glycogen. The exact derivation is uncertain.