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oat / ōt/ • n. a cereal plant (Avena sativa) cultivated chiefly in cool climates and widely used for animal feed as well as human consumption. ∎  (oats) the grain yielded by this, used as food. ∎  used in names of wild grasses related to the cultivated oat, e.g., wild oat. PHRASES: feel one's oats inf. feel lively and energetic. sow one's wild oats go through a period of wild or promiscuous behavior while young.DERIVATIVES: oat·en / ˈōtn/ adj. ( archaic ) oat·y adj.

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oat Cereal plant native to w Europe, and cultivated worldwide. The flower comprises numerous florets that produce one-seeded fruits. Mainly fed to livestock, oats are also eaten by humans. Family Poaceae/Gramineae; species Avena sativa.

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oat (pl.) grains of the cereal Avena sativa. OE. āte, pl. ātan, peculiar to Eng. and of unkn. orig.
Hence oaten (-EN3) XV.

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oat See AVENA.

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OAT outside air temperature

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