1. plural of circularity; the quality or state of being circular in shape or form
Usage: countable noun; typically used in technical, mathematical, or formal contexts
2. plural of circularity; the quality of being circular in logic or reasoning, especially when a conclusion depends on premises that themselves depend on that conclusion
Usage: logic, philosophy; often used to describe flawed reasoning

Examples

• The architect emphasized the circularnesses of the building's design.
• The argument contained several circularnesses that weakened its logical foundation.
• Mathematicians study the circularnesses of various geometric forms.
• The circularnesses in her reasoning made it difficult to follow her conclusion.
• Engineers must account for the circularnesses of rotating components.