Oat vs. Ort: What's the Difference?

Oat
The oat (Avena sativa), sometimes called the common oat, is a species of cereal grain grown for its seed, which is known by the same name (usually in the plural, unlike other cereals and pseudocereals). While oats are suitable for human consumption as oatmeal and rolled oats, one of the most common uses is as livestock feed. Oats are a nutrient-rich food associated with lower blood cholesterol when consumed regularly.Avenins present in oats (proteins similar to gliadin from wheat) can trigger celiac disease in a small proportion of people. Also, oat products are frequently contaminated by other gluten-containing grains, mainly wheat and barley.

Wikipedia

Oat (noun)
Widely cultivated cereal grass, typically Avena sativa.
“The oat stalks made good straw.”
“The main forms of oat are meal and bran.”
“World trade in oat is increasing.”
Oat (noun)
Any of the numerous species, varieties, or cultivars of any of several similar grain plants in genus Avena.
“The wild red oat is thought to be the ancestor of modern food oats.”
Oat (noun)
The seeds of the oat, a grain, harvested as a food crop.
Oat (noun)
A simple musical pipe made of oat-straw.

Ort (noun)
A fragment; a scrap of leftover food; any remainder; a piece of refuse.
Ort (verb)
To turn away from with disgust; refuse.

Wiktionary

Oat (noun)
an Old World cereal plant with a loose, branched cluster of florets, cultivated in cool climates and widely used for animal feed.
Oat (noun)
the grain yielded by the oat plant, used as food
“porridge oats”
“oats are great health value”
Oat (noun)
used in names of wild grasses related to the cultivated oat, e.g. wild oat.
Oat (noun)
an oat stem used as a musical pipe by shepherds, especially in pastoral or bucolic poetry.

Oxford Dictionary

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Oat vs. Ort