what is the name of this operation: $x^T\otimes B$

Question

So the question is simple: how the following operation is commonly called?

$x^T\otimes B$, each element of matrix B is multiplied by the array $x^T$, so the result is a matrix. I'm not even sure if I used the correct symbol.

Answer 1

This is the Kronecker product, the finite-dimensional version of the tensor product.