(n): an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia
(n): any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles
(n): an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia
also: the fruit of a sycamore
When I first knew the neighbourhood, at the turn of the century, Fifth Street was paved with cobblestones, and a genial City Council allowed a tall sycamore tree to stand quietly in the middle of the brick sidewalk in front of Mrs Albright's house, dropping its puffballs in season.
—James Thurber, 1952, 'Daguerreotype of a Lady', in The Thurber Album (Penguin ed., so BrE conventions)
Not in OED specifically in this sense, but its sense 3 includes: '(in extended use) something resembling or reminiscent of a powder puff in appearance, esp. the pappus of the dandelion, thistle, etc.'