lancer
/ˈlɑːnsə(r)/noun
1
- historical a soldier of a cavalry regiment armed with lances〈史〉（长矛骑兵团的）长矛骑兵。
1.1
Lancer
a soldier belonging to a regiment that still retains this title（今仍保留长矛轻骑兵团番号的）长矛骑兵：the Queen's Royal Lancers.
女王皇家长矛骑兵。
2
lancers
treated as sing. a quadrille for eight or sixteen pairs.由8或16对舞者组成的方阵舞。
词源
late 16th cent.: from French lancier, from lance 'a lance'.