VEXILLAR

Etymology

Adjective

vexillar (comparative more vexillar, superlative most vexillar)

Of or relating to an ensign or standard.

(botany) Of or relating to the vexillum, or upper petal of papilionaceous flowers.

Source: Wiktionary

Vex"il*lar, Vex"il*la*ry,Etym: [Cf. F. vexillaire, L. vexillarius a standard bearer.]

1. Of or pertaining to an ensign or standard.

2. (Bot.)

Definition: Of or pertaining to the vexillum, or upper petal of papilionaceous flowers. Vexilary æstivation (Bot.), a mode of æstivation in which one large upper petal folds over, and covers, the other smaller petals, as in most papilionaceous plants.

Source: Webster’s Unabridged Dictionary 1913 Edition