- any of several grasses of the genus Arrhenatherum or Danthonia, especially A. elatius, native to Europe, having a purplish-green flowering panicle.
Origin of oat grass
First recorded in 1570–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for oat grass
On the oat-grass and the sword-grass, and the bulrush in the pool.
They now contained a most luxuriant crop of oat-grass (Anthistiria).
- any of various oatlike grasses, esp of the genera Arrhenatherum and Danthonia, of Eurasia and N. Africa