circular
cir-cu-lar
adjective
Having the form of a circle; round or curving back on itself.
"The dancers moved in a circular pattern."
noun
A printed notice or advertisement distributed to many people.
"We received a circular about the new shop."
Thesaurus
Synonyms: orbitual, cyclical, cyclic, rotary, disk-shaped, moon-round, goblet-shaped, barrel-shaped, disclike, pancake-like, moonlike, globose
Antonyms: square