asterism

名词 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.（名词）
Printing Three asterisks in triangular form used to call attention to a following passage.
【印刷术】 三星标记：用以提醒注意下一段的呈三角形的三星标
Astronomy A cluster of stars smaller than a constellation.
【天文学】 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.
【矿物学】 星彩，星芒：某些水晶体经反光或光线穿透所产生的六棱形星状图象

来源：
Greek asterismos [constellation]
希腊语 asterismos [星座]
from astôr [star] * see ster- 3
源自 astôr [星] *参见 ster- 3

【引伸】
as.teris.mal
adj.（形容词）