Added 9 October 2026 wheatgrass noun Categories: PlantsRare Words noun ! Definition from Wiktionary (CC BY-SA). More about wheatgrass at Wordnik → Where our words come from → Young grass of the common wheat plant, Triticum aestivum, used freshly juiced or dried into powder for animal and human consumption. A grass of the genus Agropyron, commonly known as crested-wheat grass. Origin From wheat + grass. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: crestedwindgrassswitchgrasstriticumblackgrassteffwitchgrass Back to today's word