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Dictionary Definition of oat
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oat noun 1. ( usually plural ) a cereal grass, Avena sativa, cultivated for its edible seed, which is used in making oatmeal and as a food for horses, etc. 2. ( plural ) the seeds. 3. any species of the same genus, as A. fatua, the common wild oat. -- phrase 4. feel one's oats, a. to feel gay or lively. b. to be aware of and use one's importance and power. 5. sow one's wild oats, to indulge in the excesses or follies of youth, especially in sexual promiscuity. [ME ote, OE ate ] |
