fairy ring n. a naturally occurring ground circle caused by fungi or other biological agents; figuratively, a fanciful ring or circle of mystical or unusual behavior or action. (source: Double-Tongued Dictionary)
fairy ring n.— «Everyone who is accustomed to the country knows a “fairy ring” when he sees it. Each ring is only a belt of grass of a much darker green than that surrounding it.…If the grass of these “fairy rings” be examined in the Spring and...
fairy ring n.— «Property values, neighborhood competition and the challenge of nature aside, the suburban pysche will not rest while the hairy chinch bug and the fairy ring fungus are at work.» —“The price of success in the lawn care trade” in...
fairy ring n.— «Evidence of logging is best visualized by the way redwoods grow in rings, sometimes referred to as “fairy rings.” These are caused by the resprouts that grow around a stump. You can get a sense of how big the original tree was by...