a. [f. late L. frūmentāce-us (f. L. frūmentum corn) + -OUS.] Of the nature of or resembling wheat or other cereals. Bot. (see quot. 1841).
1668. Wilkins, Real Char., 70. Frumentaceous; Such whose seed is used by men for food.
172192. Bailey, Frumentaceous plants.
1841. Maunder, Sci. & Lit. Treas., Frumentaceous, in botany, an epithet for plants that have their stalks pointed, and their leaves like reeds, bearing their seeds in ears, like corn.