Level 6 · word 15,474 of 20,000 frond /ˈfrɑːnd/ American n. 羽叶, 复叶 Definitionn. a long divided leaf of a fern or palm treeExampleA green fern frond curled gently near the window.一片绿色的蕨叶在窗边轻轻卷曲着。