ˈhȯ(r)dēəm noun
Etymology: New Latin, from Latin, barley; akin to Old High German gersta barley, Greek kri, Albanian drith, and probably to Latin horrēre to bristle — more at horror
1. capitalized : a widely distributed genus of grasses having the flowers in dense spikes often with long-awned glumes and the one-flowered spikelets in clusters of two or three at each joint of the rachis — see barley
2. -s : any grass of the genus Hordeum