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A frond is the special kind of leaf you get on a or a palm — often large, and often cut into many smaller , like a feather. Ordinary garden leaves, a rose or a mango, are just leaves; people who write about plants reach for frond when they mean that -or-palm shape. You might also hear it for some that spread in a similar leafy way, though the core picture is still and palms. It is a quiet textbook word, not slang, and not a word for any leaf at all.
蕨葉、棕櫚葉（大型羽狀葉）
組成Borrowed from Latin frons, frond- (“leafy branch”).
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
frondnoun/fɹɒnd/
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biologybotanynatural-sciencesThe leaf of a fern, especially a compound leaf.
- By the bank, fifty yards below Elm Island, stood the Master, looking into water six inches deep. A fern frond, knocked off the bank upstream, came down turning like a little green dragon in the clear water.
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Any fern-like leaf or other object resembling a fern leaf.
- palm frond
- Scores of coconut-shell fires blazed with their characteristic glaring white flame, throwing grotesque shadows on the brown thatched huts, dancing in fairylike shimmerings among the domes of coconut fronds, casting ghostly reaches of light through the adjacent graveyards, and silhouetting the forms of pareu-clad natives at work cleaning their fish or laying them on the live coals to broil.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。