The phrase "oz jar" refers to a jar that can hold a specific amount of liquid. The "oz" stands for ounces, which is a unit of measurement for volume. So, an "oz jar" is a jar that can hold a certain number of ounces of liquid.
Sentences with «oz jar»
We picked several pounds and after freezing most and saving some for eating fresh, I used up a bunch to make two 16 - oz jars of delicious preserves. (serendibbeginnings.com)
A very large 56 oz jar for around $ 16, depending on where you are at. (mariamindbodyhealth.com)
And that's not all, you get a large 4 oz jar with this purchase, too, whereas some of the other brands only give you 2 oz. (geekwrapped.com)