Is there a name for the "big operators" like summation and product notation?

Question

There are "big operators" like $\sum$, $\prod$, $\bigcap$ and $\bigcup$ to describe a repeated application of a certain operator on some expression. For example, $\sum_{i=1}^{n}i^2 = 0^2 + 1^2 + \ldots + (n-1)^2 + n^2$.

Is there a general name for these operators?

Answer 1

They are sometimes called "large operators". E.g. here