any uncultivated species of Avena, especially a common weedy grass, A. fatua, resembling the cultivated oat.
a hardy plant, Uvularia sessilifolia, of the lily family, of eastern North America, having deep green, hairy leaves and greenish-yellow, tubular flowers.
Idioms about wild oat
sow one's wild oats, to have a youthful fling at reckless and indiscreet behavior, especially to be promiscuous before marriage.
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How to use wild oat in a sentence
Get your wild-oat sowing done as soon as possible and come back.A Tatter of Scarlet | S. R. Crockett
But Keller Bey has not seen the first green of his wild oat-sowing.A Tatter of Scarlet | S. R. Crockett
On every hand wheat and corn and clover had taken the place of the wild oat, the hazelbush and the rose.A Son of the Middle Border | Hamlin Garland
They have all summer long called to each other from the reedy fens and wild oat-fields of the far north.Evolution of Expression, Volume 2--Revised | Charles Wesley Emerson
If one could have it now in the wild-oat season; but that isn't to be expected.Norston's Rest | Ann S. Stephens
British Dictionary definitions for wild oat
any of several temperate annual grasses of the genus Avena, esp A. fatua, that grow as weeds and have long bristles on their flower spikes
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012