pennon

/ˈpenən/
a long flag, often tapering and rounded, divided, or pointed at the end, originally a knight's personal flag 狭长三角旗; 燕尾旗

noun [专属名词] (长矛等上的)狭长三角旗;燕尾旗;(任何形状的)旗帜;(鸟类的)翼

A small pennon borne on a lance. 绑在上小狭长三角旗。

单词造句:
网友用 “Pennon” 造句精选
He has had his lance stuck up with a pennon, which streams in a strong east wind. 他那矛枪上扎着一面小三角旗,在强劲的东风中飘动。