'Ring shaped' in the Bible

" 'But if you bring a grain offering of something oven-baked, [it must be of] finely milled flour [as] ring-shaped unleavened bread [mixed] with oil or wafers of unleavened bread smeared with oil.

If he presents it on account of thanksgiving, along with the thank offering sacrifice he must present unleavened loaves mixed with olive oil, unleavened wafers smeared with olive oil, and well soaked ring-shaped loaves made of choice wheat flour mixed with olive oil.

He must present this grain offering in addition to ring-shaped loaves of leavened bread which regularly accompany the sacrifice of his thanksgiving peace offering.

and from the basket of the unleavened bread that [was] before Yahweh he took one ring-shaped unleavened bread and one ring-shaped bread with oil and one wafer, and he placed [them] on the {fat parts} and on the right upper thigh.

"And you shall take finely milled flour, and you shall bake [with] it twelve ring-shaped bread cakes: each one [shall be] two-tenths [of an ephah].