noun ダウンロード 🔗共有 胚乳 Tissue surrounding the embryo of flowering plant seeds, that provides nutrition to the developing embryo; usually triploid Examples : "The endosperm of the sunflower seed provides nourishment for the tiny seedling as it grows. " ヒマワリの種子の胚乳は、小さな苗が成長するにつれて栄養を与えます。 biology plant seed agriculture AIとチャット語彙ゲーム読解練習