noun ダウンロード 🔗共有 重力、引力 The fundamental force of attraction that exists between all particles with mass in the universe. It is the weakest of the four forces, and possesses a gauge boson known as the graviton. Examples : "The apple fell from the tree due to gravitation. " 重力によってリンゴが木から落ちました。 physics astronomy space theory science AIとチャット語彙ゲーム読解練習