Englishfor English speakers
circular
Adjective
—
If something is circular it has the shape of a circle.
The wine glass left a circular stain on the table.
cavity
Noun
—
A cavity is a hole or hollow area.
—
A cavity is a hollow area inside the body (like the sinuses).
—
A cavity is a hole in a decayed tooth.
You have a cavity in your back teeth.