单词 | silvertop |
释义 | silvertopnoun plural -s 1 : an abnormal condition of various plants marked by whitened patches on the leaves and distortion and dwarfing of growing parts and caused by the feeding of insects or mites: a : such a condition of cereal and other grasses caused usually by a mite (Sitopteres graminum) b : a widespread condition of onions caused by the onion thrips 2 or silvertop palmetto a : a rather small stocky fan palm (Thrinax microcarpa) of southernmost Florida and Cuba that has broad fan-shaped long-petioled leaves pale green above and whitish and tomentose below called also silver thatch b : any of various usually low-growing and silvery-leaved palms (such as a silver palm) of southern Florida or the West Indies that resemble or are related to the common silvertop 3 : any of several eucalypts: such as a : shining gum b : spotted gum |
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