名詞 asterism:

1. (mineralogy) a star-shaped figure with six rays that is seen in some crystal structures under reflected or transmitted light
2. (astronomy) a cluster of stars (or a small constellation)

as.ter.ism

n.（名詞）
Printing Three asterisks in triangular form used to call attention to a following passage.
【印刷術(shù)】 三星標(biāo)記：用以提醒注意下一段的呈三角形的三星標(biāo)
Astronomy A cluster of stars smaller than a constellation.
【天文學(xué)】 星群，星座：比星座小的一簇星星
Mineralogy A six-rayed starlike figure optically produced in some crystal structures by reflected or transmitted light.
【礦物學(xué)】 星彩，星芒：某些水晶體經(jīng)反光或光線穿透所產(chǎn)生的六棱形星狀圖象

來(lái)源：
Greek asterismos [constellation]
希臘語(yǔ) asterismos [星座]
from astôr [star] * see ster- 3
源自 astôr [星] *參見(jiàn) ster- 3

【引伸】
as.teris.mal
adj.（形容詞）