Thomas de Groot <tho### [at] degrootorg> wrote:

> My first thought: pulley.

My third thought was that it would be what was left when one subtracted away a
torus.
So, a donut hole, or an anti-torus.
Maybe something akin to a "munchkin".   :D

There apparently _IS_ an antitorus, but I can't find a clear description or
illustration of what exactly it is.

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