释义 |
pit·y·ro·gram·ma \ˌpid.ərōˈgramə\ noun Usage: capitalized Etymology: New Latin, from Greek pityron bran + gramma letter — more at gram : a small genus of terrestrial tropical ferns (family Polypodiaceae) that have fronds with a powdery yellowish or white undersurface and linear dorsal sori — see gold fern, silver fern |