of or like oats.
First recorded in 1765–75; from Latin avēnāceus, equivalent to avēn(a) “oats” + -āceus -aceous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use avenaceous in a sentence
I gathered a viviparous avenaceous grass (what this was cannot be ascertained).Lachesis Lapponica | Carl von Linn