I'm reading a paper in which $\circledcirc$ is used to mean an infinitesimal (from nonstandard analysis). So, for example, you would have $0<\circledcirc^2<\circledcirc$.
I'm wondering how to pronounce this symbol, and thus expressions containing it. (Zero is less than bullseye squared is less than bullseye? What's that symbol called?)
Note that I understand the name of the symbol in $\LaTeX$ (
\circledcirc), but that's not what I'm asking. What does the non-standard analysis community call it when reading in their heads, or talking to students from the blackboard?