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trillium

英 ['trɪlɪəm] 美 ['trɪlɪəm]

n. [植] 延龄草；延龄草属植物

英文词源

trillium (n.): 1768, from Modern Latin trillium (Linnaeus, 1753), from Latin tri- "three" (see three). So called for its leaves and flower segments.