What is "iceballs"

Usage examples of "iceballs".

Its spirals were mirror-shielded iceballs, gathered into orbit by the member peoples of the Elderhood to hold their missions and legations.

Billions or maybe trillions of iceballs like their own Janoort, closer than any of the stars.

Pluto, were reduced to the size of a human fingertip, the bulk of the Oort cloud of iceballs would lie ten yards away from that finger.