chevron
/ˈʃevrən/noun
1- a V-shaped line or stripe, especially one on the sleeve of a uniform indicating rank or length of service.V形线; V形条（尤指表示级别或服役期的V形臂部识别符）。
1.1
- Heraldry an ordinary in the form of a broad inverted V-shape【纹章】宽V字形普通图记。
词源
late Middle English (in heraldic use)： from Old French， based on Latin caper 'goat'; compare with Latin capreoli （diminutive of caper） used to mean 'pair of rafters'.