noun🔗ShareリグニンA complex non-carbohydrate aromatic polymer present in all wood."The brown color of cardboard comes from the lignin that remains in the wood pulp used to make it. "段ボールの茶色は、それを作るために使用される木材パルプに残っているリグニンに由来します。substancematerialchemistryplantbiologybiochemistrycompoundagriculturescienceChat with AIVocabulary GamePractice Reading
