What is "polemoniaceous"

Polemoniaceous \Pol`e*mo`ni*a"ceous\, a. (Bot.) Of or pertaining to a natural order of plants ( Polemoniace[ae]), which includes Polemonium, Phlox, Gilia, and a few other genera.

a. Of or pertaining to the plant family Polemoniaceae.

adj. of or pertaining to or characteristic of plants of the family Polemoniaceae