noun ダウンロード 🔗共有 ペニシリン、抗生物質 Any of a group of narrow-spectrum antibiotics obtained from Penicillium molds or synthesized; they have a beta-lactam structure; most are active against gram-positive bacteria and used in the treatment of various infections and diseases. Examples : "The doctor prescribed penicillin for my son's ear infection, hoping the antibiotic would quickly kill the bacteria. " 医者は息子の耳の感染症にペニシリンを処方し、抗生物質が細菌をすぐに殺してくれることを願った。 medicine biology chemistry biochemistry microorganism disease substance AIとチャット語彙ゲーム読解練習