noun ダウンロード 🔗共有 痰, 喀痰 Matter coughed up and expectorated from the mouth, composed of saliva and discharges from the respiratory passages such as mucus, phlegm or pus. Examples : "The doctor asked him to cough up some sputum so she could test it for infection. " 医者は彼に感染症の検査をするために、痰を出すように頼みました。 medicine body physiology disease biology anatomy AIとチャット語彙ゲーム読解練習