| 单词 | ageratum |
| 释义 | ageratum /aj'euh ray"teuhm, euh jer"euh-/, n. 1. any of several composite plants of the genus Ageratum, esp. A. houstonianum, having heart-shaped leaves and small, dense, blue, lavender, or white flower heads, often grown in gardens. 2. any of various other composite plants, as the mistflower, having blue or white flowers. [1560-70; < NL; L ageraton < Gk agératon, neut. of agératos unaging, equiv. to a- A-6 + gerat- (s. of gêras) old age + -os adj. suffix] |
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