wild oat definition by American Heritage Dictionary
- often wild oats An annual Eurasian grass (Avena fatua) related to the cultivated oat. Often used in the plural.
- wild oats Misdeeds and indiscretions committed when young.
Variant of wild oats
- ☆ a woodland plant (Uvularia sessilifolia) of the lily family, with small, drooping, yellowish flowers, native to E North America
- any of several wild grasses (genus Avena); esp., the wild progenitor (A. fatua) of the cultivated oat, having strong, twisted awns and commonly occurring as a weed, esp. in the W U.S.also wild oat