a ball that you use to curl stuff with WOOTERs
When the moon is shaped like a ball it is called a full moon.
A curling tournament is typically called a "bonspiel", sometimes shortened to "spiel." An exception is that qualifying tournaments for national or world championships are typically called "playdowns," with the act of competing in such a tournament called "playing down."
Thorax
There is no ball in Curling. They use rocks made out of Granate that weigh 44 lbs each. There is no ball in Curling. They use rocks made out of Granate that weigh 44 lbs each.
Microfilaments are made from a protein called actin. Actin filaments are composed of monomers of globular actin proteins, which can polymerize to form long, thin filaments that are a crucial component of the cytoskeleton in cells.
chicharrito
Curling into a ball is a defensive movement often seen in animals or humans to protect vital organs and reduce exposure. It can be a response to threats, fear, or discomfort as a way to create a barrier or shield against potential harm.
described as "spherical" or "ball-shaped".
. . . A baby?
That would be a vacuum reservoir.
a ball and a stick