n. (pl. -la ) 1.【古罗马】军旗；统属同一军旗下的部队。 2.【宗教】牧杖上的小旗；行列旒旗；行列十字架。 3.【植物；植物学】旗瓣；【动物；动物学】?，羽片；膨大跗端。
The vexillum (; plural vexilla) was a flag-like object used in the Classical Era of the Roman Empire. The word is itself a diminutive for the Latin word, velum, sail, which confirms the historical evidence (from coins and sculpture) that vexilla were literally "little sails" i.
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