In arch., a molding whose contour is exactly or approximately a quadrant: same as ovolo.(noun)
Any tool adapted for forming quarter-rounds, as an ovolo-plane.(noun)
The Century Dictionary (Public Domain)
Use "quarter-round" in a sentence
"Collection includes private (high back) and public (low back) lounge chairs, straight and quarter-round connecting tables, optional accessories as well as accompanying benches and occasional tables."
"This required the keyboard stylings of Terry, a service-desk genius who knew how to do everything, and he quickly set to work applying the refund to the purchase price of the quarter-round."
"I went back to Flooring to buy more quarter-round; explained the situation in passing to the Flooring Department manager."