Definition of vexillary in English:

vexillary

noun

  • 1A veteran of the oldest category in the Roman army, serving under a special standard.

  • 2A Roman standard-bearer.

adjective

  • Botany. Of aestivation: having the petals arranged so that the large, posterior vexillum encloses the other, smaller petals of the corolla. Also more generally: relating to or pertaining to a vexillum; having a vexillum.

Origin

Late 16th century; earliest use found in Henry Savile (1549–1622), mathematician and classical scholar.

Pronunciation

vexillary

/vɛkˈsɪl(ə)ri/