circular

As adjectives the difference between circular and automorphic

is that circular is of or relating to a circle while automorphic is (geology) describing a mineral, in an igneous rock, that is bounded by its own crystal face; euhedral, idiomorphic.

As a noun circular

is a printed advertisement, directive, or notice intended for mass distribution; a flyer.

As nouns the difference between circular and virusoid

is that circular is a printed advertisement, directive, or notice intended for mass distribution; a flyer while virusoid is a circular single-stranded rna, similar but not identical to a viroid, dependent on plant viruses for replication and encapsidation.

As an adjective circular

is of or relating to a circle.

As adjectives the difference between circular and orthoradial

is that circular is of or relating to a circle while orthoradial is (mathematics) relative to a grid of circles surrounding a point and lines starting at that point; such a graph has alternate circular and radial components.

As a noun circular

is a printed advertisement, directive, or notice intended for mass distribution; a flyer.

As adjectives the difference between circular and circularized

is that circular is of or relating to a circle while circularized is publicized using circulars.

As a noun circular

is a printed advertisement, directive, or notice intended for mass distribution; a flyer.

As a verb circularized is

past tense of circularize.

As nouns the difference between circular and ringfort

is that circular is a printed advertisement, directive, or notice intended for mass distribution; a flyer while ringfort is an ancient circular fortification of earth or stone, found especially in Ireland.

As an adjective circular

is of or relating to a circle.

As nouns the difference between circular and circularization

is that circular is a printed advertisement, directive, or notice intended for mass distribution; a flyer while circularization is the distribution of publicity circulars.

As an adjective circular

is of or relating to a circle.

Cycloidal is a synonym of circular.

As adjectives the difference between circular and cycloidal

is that circular is of or relating to a circle while cycloidal is pertaining to or resembling a cycloid; or a circle.

As a noun circular

is a printed advertisement, directive, or notice intended for mass distribution; a flyer.