‖Vex‐il″lum (?), n.; pl.Vexilla (#). 1. (Rom. Antiq.) (a) A flag or standard. (b) A company of troops serving under one standard.
2. (Eccl.) (a) A banner. (b) The sign of the cross.
3. (Bot.) The upper petal of a papilionaceous flower; the standard.
4. (Zoöl.) The rhachis and web of a feather taken together; the vane.