1. not having the shape of a circle; not circular

Examples

• The noncircular orbit of the comet made it difficult to predict its path.
• The architect designed a noncircular window for the modern building.
• Most planets have slightly noncircular orbits around the sun.
• The noncircular shape of the lake was caused by glacial activity.
• Engineers must account for noncircular cross-sections in pipe design.
• The noncircular gears created an irregular motion pattern.