aster

詳細解釋：

as.ter

n.（名詞）
Any of various plants of the genusAster in the composite family, having radiate flower heads with white, pink, or violet rays and a usually yellow disk.
紫菀屬植物：一種菊科紫菀 屬的植物，有帶白、粉、或藍紫色傘形放射狀頭狀花序，花盤一般為黃色
The China aster.
翠菊
Biology A star-shaped structure formed in the cytoplasm of a cell and having raylike fibers that surround the centrosome during mitosis.
【生物學】 星狀體：在細胞漿內形成的星狀結構，在有絲分裂期間有棱形纖維環繞中心體

來源：
Latin astôr [a plant, star]
拉丁語 astôr [植物，星]
from Greek astôr * see ster- 3
源自 希臘語 astôr *參見 ster- 3