DictionarycircularCircle shape or motion
adjective / noun

circular

SER-kyuh-ler/ˈsɜːrkjələr/

Going around in a complete loop.

The plate's circular rim forms a complete loop around its center.

A single round ceramic plate viewed directly from above, with a clearly circular outer edge and concentric inner rim.
Etymology

The underlying image is a small ring. Circular describes either something with that ring-like shape or movement following a circle, connecting a fixed outline with a path of motion.

In context

VAM! Physics & Engineering1:00
multiplying by the radius of the circular path so once again if the ball was moving around the path at one Radian a second
Circular Motion (Physics Lecture/Problems and Solutions)

More examples

  • She cuts a circular piece of fabric.
  • The office sends a circular to every branch.
  • Their circular argument keeps returning to the assumption it should prove.

Forms

circular · circulars

Similar words

round
Round describes shape broadly; circular more specifically invokes a circle or a returning loop.