asterism [as-tuh-riz-uh m]
a. a group of stars.
b. a constellation.
2. Mineralogy. a property of some crystallized minerals of showing a starlike luminous figure in transmitted light or, in a cabochon-cut stone, by reflected light.
3. three asterisks printed to draw attention to a passage it precedes.
Origin: 1590-1600; < Greek asterism (ós) a marking with stars. See asterisk, -ism
Now YOU come up with a sentence (or fic? or graphic?) that best illustrates the word.