Definition of oat
1a : any of several grasses (genus Avena); especially : a widely cultivated cereal grass (A. sativa)b : a crop or plot of the oat; also : the seed of an oat —usually used in pl. but singular or plural in construction
2 archaic : a reed instrument made of an oat straw
feel one's oats
: to act in a newly self-confident and often self-important manner
Recent Examples of oat from the Web
If the seedlings are oat or wheat, just pull them up or cut them off.
The runaway horse was feeling her oats, calmly walking along Ninth Avenue before breaking into a run on 54th street.
This veggie burger is packed with good stuff, including oats, beans, squash, quinoa, and corn—and that’s just for starters.
Her banana bread is made with a mixture of three alt-flours (oat, almond and brown rice) as well as chia seeds in order to take advantage of their moisture-lending properties.
As the seconds tick away, runners in gold jackets sprint to deliver orders to hundreds of traders crammed into the corn, oat, and wheat pits.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'oat'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of oat
Middle English ote, from Old English āte
First Known Use: before 12th century
OAT Defined for English Language Learners
Definition of oat for English Language Learners
: a kind of grain that is widely grown
oats : the seeds of the oat plant used as feed for farm animals and in foods (such as bread and oatmeal) for people
OAT Defined for Kids
Definition of oat for Students
1 : a cereal grass grown for its loose clusters of seeds that are used for human food and animal feed
2 oats plural : a crop or the seeds of the oat
Seen and Heard
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