circular
adjective
[ ˈsəːkjʊlə ]
• having the form of a circle.
• "the building features a circular atrium"
Similar:
round,
disc-shaped,
disc-like,
ring-shaped,
hoop-shaped,
hooplike,
annular,
cycloidal,
discoid,
discoidal,
• (of an argument) already containing an assumption of what is to be proved, and therefore fallacious.
• "the reality of standard English rests on the circular argument that that is good which good users use"
• (of a letter or advertisement) for distribution to a large number of people.
• "a circular letter was sent asking for support"
circular
noun
• a letter or advertisement that is distributed to a large number of people.
• "I received a circular from a building society"
Origin:
late Middle English: from Old French circulier, from late Latin circularis, from Latin circulus ‘small ring’ (see circle).