n. [植] 紫菀属植物；星状体

n. (Aster)人名；(德、意、捷)阿斯特尔

n. any of various chiefly fall-blooming herbs of the genus Aster with showy daisylike flowers

n. star-shaped structure formed in the cytoplasm of a cell having fibers like rays that surround the centrosome during mitosis