プログレッシブ和英中辞典(第３版)の解説
じんがさ【陣×笠】
1 〔下級兵士の笠〕straw hats formerly worn by common foot soldiers in place of helmets
2 〔雑兵〕common foot soldiers
3 〔下っ端の代議士〕a member of the House of Representatives who has no special (government or party) post